CINXE.COM

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:og="http://opengraphprotocol.org/schema/" xmlns:rnews="http://iptc.org/std/rNews/2011-10-07#" xml:lang="en-GB">      <head profile="http://dublincore.org/documents/dcq-html/" resource="http://www.bbc.co.uk/nature/23809528" typeof="rnews:NewsItem"><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.bbc.co.uk:80/nature/23809528","20150211022154","https://web.archive.org/","web","/_static/", "1423621314"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <meta http-equiv="X-UA-Compatible" content="IE=8"/> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>BBC Nature - FAQs - BBC Nature Frequently Asked Questions</title> <meta name="Description" content="The most common frequently asked questions (FAQs) for BBC Nature."/> <meta property="rnews:description" content="The most common frequently asked questions (FAQs) for BBC Nature."/> <meta name="OriginalPublicationDate" content="2013/10/21 09:44:35"/> <meta property="rnews:datePublished" content="2013/10/21 09:44:35"/> <meta name="UKFS_URL" content="/nature/23809528"/> <meta name="Headline" content="BBC Nature FAQs"/> <meta property="rnews:headline" content="BBC Nature FAQs"/> <meta name="IFS_URL" content="/nature/23809528"/> <meta name="Section" content="Home"/> <meta name="contentFlavor" content="STORY"/> <meta name="CPS_ID" content="23809528"/> <meta name="CPS_SITE_NAME" content="BBC Nature"/> <meta name="CPS_SECTION_PATH" content="Home"/> <meta name="CPS_ASSET_TYPE" content="STY"/> <meta name="CPS_PLATFORM" content="HighWeb"/> <meta name="CPS_AUDIENCE" content="Domestic"/> <meta property="rnews:creator" content="http://www.bbc.co.uk#org"/> <meta property="og:title" content="BBC Nature FAQs"/> <meta property="og:type" content="article"/> <meta property="og:url" content="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/23809528"/> <meta property="og:site_name" content="BBC Nature"/> <meta property="og:image" content="https://web.archive.org/web/20150211022154im_/http://newsimg.bbc.co.uk/media/images/67165000/jpg/_67165918_67165917.jpg"/> <meta name="bbcsearch_noindex" content="atom"/> <link rel="canonical" href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/23809528"/>      <meta http-equiv="X-UA-Compatible" content="IE=8"/> <link rel="schema.dcterms" href="http://purl.org/dc/terms/"/> <link rel="index" href="http://www.bbc.co.uk/a-z/" title="A to Z"/> <link rel="copyright" href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/terms/" title="Terms of Use"/> <link rel="icon" href="https://web.archive.org/web/20150211022154im_/http://www.bbc.co.uk/favicon.ico" type="image/x-icon"/> <meta name="viewport" content="width = 996"/> <script type="text/javascript">window.orb = window.orb || {};</script> <script type="text/javascript">/*<![CDATA[*/ (function(){window.fig=window.fig||{};window.fig.manager={include:function(a){a=a||window;var e=a.document,g=e.cookie,b=g.match(/(?:^|; ?)ckns_orb_fig=([^;]+)/);if(!b&&g.indexOf("ckns_orb_nofig=1")>-1){this.setFig(a,{no:1})}else{if(b){b=this.deserialise(decodeURIComponent(RegExp.$1));this.setFig(a,b)}e.write('<script src="https://web.archive.org/web/20150211022154/https://ssl.bbc.co.uk/frameworks/fig/1/fig.js"><'+"/script>")}},confirm:function(a){a=a||window;if(a.orb&&a.orb.fig&&a.orb.fig("no")){this.setNoFigCookie(a)}if(a.orb===undefined||a.orb.fig===undefined){this.setFig(a,{no:1});this.setNoFigCookie(a)}},setNoFigCookie:function(a){a.document.cookie="ckns_orb_nofig=1; expires="+new Date(new Date().getTime()+1000*60*10).toGMTString()+";"},setFig:function(a,b){(function(){var c=b;a.orb=a.orb||{};a.orb.fig=function(d){return(arguments.length)?c[d]:c}})()},deserialise:function(b){var a={};b.replace(/([a-z]{2}):([0-9]+)/g,function(){a[RegExp.$1]=+RegExp.$2});return a}}})();fig.manager.include();/*]]>*/</script> <script type="text/javascript"> fig.manager.confirm(); </script> <link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20150211022154cs_/http://static.bbci.co.uk/frameworks/barlesque/2.83.4/desktop/3.5/style/main.css"/> <script type="text/javascript">/*<![CDATA[*/ (function(undefined){if(!window.bbc){window.bbc={}}var ROLLING_PERIOD_DAYS=30;window.bbc.Mandolin=function(id,segments,opts){var now=new Date().getTime(),storedItem,DEFAULT_START=now,DEFAULT_RATE=1,COOKIE_NAME="ckpf_mandolin";opts=opts||{};this._id=id;this._segmentSet=segments;this._store=new window.window.bbc.Mandolin.Storage(COOKIE_NAME);this._opts=opts;this._rate=(opts.rate!==undefined)?+opts.rate:DEFAULT_RATE;this._startTs=(opts.start!==undefined)?new Date(opts.start).getTime():new Date(DEFAULT_START).getTime();this._endTs=(opts.end!==undefined)?new Date(opts.end).getTime():daysFromNow(ROLLING_PERIOD_DAYS);this._signupEndTs=(opts.signupEnd!==undefined)?new Date(opts.signupEnd).getTime():this._endTs;this._segment=null;if(typeof id!=="string"){throw new Error("Invalid Argument: id must be defined and be a string")}if(Object.prototype.toString.call(segments)!=="[object Array]"){throw new Error("Invalid Argument: Segments are required.")}if(opts.rate!==undefined&&(opts.rate<0||opts.rate>1)){throw new Error("Invalid Argument: Rate must be between 0 and 1.")}if(this._startTs>this._endTs){throw new Error("Invalid Argument: end date must occur after start date.")}if(!(this._startTs<this._signupEndTs&&this._signupEndTs<=this._endTs)){throw new Error("Invalid Argument: SignupEnd must be between start and end date")}removeExpired.call(this,now);var overrides=window.bbccookies.get().match(/ckns_mandolin_setSegments=([^;]+)/);if(overrides!==null){eval("overrides = "+decodeURIComponent(RegExp.$1)+";");if(overrides[this._id]&&this._segmentSet.indexOf(overrides[this._id])==-1){throw new Error("Invalid Override: overridden segment should exist in segments array")}}if(overrides!==null&&overrides[this._id]){this._segment=overrides[this._id]}else{if((storedItem=this._store.getItem(this._id))){this._segment=storedItem.segment}else{if(this._startTs<=now&&now<this._signupEndTs&&now<=this._endTs&&this._store.isEnabled()===true){this._segment=pick(segments,this._rate);if(opts.end===undefined){this._store.setItem(this._id,{segment:this._segment})}else{this._store.setItem(this._id,{segment:this._segment,end:this._endTs})}log.call(this,"mandolin_segment")}}}log.call(this,"mandolin_view")};window.bbc.Mandolin.prototype.getSegment=function(){return this._segment};function log(actionType,params){var that=this;require(["istats-1"],function(istats){istats.log(actionType,that._id+":"+that._segment,params?params:{})})}function removeExpired(expires){var items=this._store.getItems(),expiresInt=+expires;for(var key in items){if(items[key].end!==undefined&&+items[key].end<expiresInt){this._store.removeItem(key)}}}function getLastExpirationDate(data){var winner=0,rollingExpire=daysFromNow(ROLLING_PERIOD_DAYS);for(var key in data){if(data[key].end===undefined&&rollingExpire>winner){winner=rollingExpire}else{if(+data[key].end>winner){winner=+data[key].end}}}return(winner)?new Date(winner):new Date(rollingExpire)}window.bbc.Mandolin.prototype.log=function(params){log.call(this,"mandolin_log",params)};window.bbc.Mandolin.prototype.convert=function(params){log.call(this,"mandolin_convert",params);this.convert=function(){}};function daysFromNow(n){var endDate;endDate=new Date().getTime()+(n*60*60*24)*1000;return endDate}function pick(segments,rate){var picked,min=0,max=segments.length-1;if(typeof rate==="number"&&Math.random()>rate){return null}do{picked=Math.floor(Math.random()*(max-min+1))+min}while(picked>max);return segments[picked]}window.bbc.Mandolin.Storage=function(name){validateCookieName(name);this._cookieName=name;this._isEnabled=(bbccookies.isAllowed(this._cookieName)===true&&bbccookies.cookiesEnabled()===true)};window.bbc.Mandolin.Storage.prototype.setItem=function(key,value){var storeData=this.getItems();storeData[key]=value;this.save(storeData);return value};window.bbc.Mandolin.Storage.prototype.isEnabled=function(){return this._isEnabled};window.bbc.Mandolin.Storage.prototype.getItem=function(key){var storeData=this.getItems();return storeData[key]};window.bbc.Mandolin.Storage.prototype.removeItem=function(key){var storeData=this.getItems();delete storeData[key];this.save(storeData)};window.bbc.Mandolin.Storage.prototype.getItems=function(){return deserialise(this.readCookie(this._cookieName)||"")};window.bbc.Mandolin.Storage.prototype.save=function(data){window.bbccookies.set(this._cookieName+"="+encodeURIComponent(serialise(data))+"; expires="+getLastExpirationDate(data).toUTCString()+";")};window.bbc.Mandolin.Storage.prototype.readCookie=function(name){var nameEq=name+"=",ca=window.bbccookies.get().split("; "),i,c;validateCookieName(name);for(i=0;i<ca.length;i++){c=ca[i];if(c.indexOf(nameEq)===0){return decodeURIComponent(c.substring(nameEq.length,c.length))}}return null};function serialise(o){var str="";for(var p in o){if(o.hasOwnProperty(p)){str+='"'+p+'"'+":"+(typeof o[p]==="object"?(o[p]===null?"null":"{"+serialise(o[p])+"}"):'"'+o[p].toString()+'"')+","}}return str.replace(/,\}/g,"}").replace(/,$/g,"")}function deserialise(str){var o;str="{"+str+"}";if(!validateSerialisation(str)){throw"Invalid input provided for deserialisation."}eval("o = "+str);return o}var validateSerialisation=(function(){var OBJECT_TOKEN="<Object>",ESCAPED_CHAR='"\\n\\r\\u2028\\u2029\\u000A\\u000D\\u005C',ALLOWED_CHAR="([^"+ESCAPED_CHAR+"]|\\\\["+ESCAPED_CHAR+"])",KEY='"'+ALLOWED_CHAR+'+"',VALUE='(null|"'+ALLOWED_CHAR+'*"|'+OBJECT_TOKEN+")",KEY_VALUE=KEY+":"+VALUE,KEY_VALUE_SEQUENCE="("+KEY_VALUE+",)*"+KEY_VALUE,OBJECT_LITERAL="({}|{"+KEY_VALUE_SEQUENCE+"})",objectPattern=new RegExp(OBJECT_LITERAL,"g");return function(str){if(str.indexOf(OBJECT_TOKEN)!==-1){return false}while(str.match(objectPattern)){str=str.replace(objectPattern,OBJECT_TOKEN)}return str===OBJECT_TOKEN}})();function validateCookieName(name){if(name.match(/ ,;/)){throw"Illegal name provided, must be valid in browser cookie."}}})(); /*]]>*/</script> <script type="text/javascript">/*<![CDATA[*/ if (typeof bbccookies_flag === 'undefined') { bbccookies_flag = 'ON'; } showCTA_flag = false; cta_enabled = (showCTA_flag && (bbccookies_flag === 'ON') ); (function(){var e="ckns_policy",m="Thu, 01 Jan 1970 00:00:00 GMT",k={ads:true,personalisation:true,performance:true,necessary:true};function f(p){if(f.cache[p]){return f.cache[p]}var o=p.split("/"),q=[""];do{q.unshift((o.join("/")||"/"));o.pop()}while(q[0]!=="/");f.cache[p]=q;return q}f.cache={};function a(p){if(a.cache[p]){return a.cache[p]}var q=p.split("."),o=[];while(q.length&&"|co.uk|com|".indexOf("|"+q.join(".")+"|")===-1){if(q.length){o.push(q.join("."))}q.shift()}f.cache[p]=o;return o}a.cache={};function i(o,t,p){var z=[""].concat(a(window.location.hostname)),w=f(window.location.pathname),y="",r,x;for(var s=0,v=z.length;s<v;s++){r=z[s];for(var q=0,u=w.length;q<u;q++){x=w[q];y=o+"="+t+";"+(r?"domain="+r+";":"")+(x?"path="+x+";":"")+(p?"expires="+p+";":"");bbccookies.set(y,true)}}}window.bbccookies={_setEverywhere:i,cookiesEnabled:function(){var o="ckns_testcookie"+Math.floor(Math.random()*100000);this.set(o+"=1");if(this.get().indexOf(o)>-1){g(o);return true}return false},set:function(o){return document.cookie=o},get:function(){return document.cookie},_setPolicy:function(o){return h.apply(this,arguments)},readPolicy:function(o){return b.apply(this,arguments)},_deletePolicy:function(){i(e,"",m)},isAllowed:function(){return true},_isConfirmed:function(){return c()!==null},_acceptsAll:function(){var o=b();return o&&!(j(o).indexOf("0")>-1)},_getCookieName:function(){return d.apply(this,arguments)},_showPrompt:function(){var o=(!this._isConfirmed()&&window.cta_enabled&&this.cookiesEnabled()&&!window.bbccookies_disable);return(window.orb&&window.orb.fig)?o&&(window.orb.fig("no")||window.orb.fig("ck")):o}};bbccookies._getPolicy=bbccookies.readPolicy;function d(p){var o=(""+p).match(/^([^=]+)(?==)/);return(o&&o.length?o[0]:"")}function j(o){return""+(o.ads?1:0)+(o.personalisation?1:0)+(o.performance?1:0)}function h(r){if(typeof r==="undefined"){r=k}if(typeof arguments[0]==="string"){var o=arguments[0],q=arguments[1];if(o==="necessary"){q=true}r=b();r[o]=q}else{if(typeof arguments[0]==="object"){r.necessary=true}}var p=new Date();p.setYear(p.getFullYear()+1);p=p.toUTCString();bbccookies.set(e+"="+j(r)+";domain=bbc.co.uk;path=/;expires="+p+";");bbccookies.set(e+"="+j(r)+";domain=bbc.com;path=/;expires="+p+";");return r}function l(o){if(o===null){return null}var p=o.split("");return{ads:!!+p[0],personalisation:!!+p[1],performance:!!+p[2],necessary:true}}function c(){var o=new RegExp("(?:^|; ?)"+e+"=(\\d\\d\\d)($|;)"),p=document.cookie.match(o);if(!p){return null}return p[1]}function b(o){var p=l(c());if(!p){p=k}if(o){return p[o]}else{return p}}function g(o){return document.cookie=o+"=;expires="+m+";"}function n(){var o='<script type="text/javascript" src="https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/bbccookies/0.6.6/script/bbccookies.js"><\/script>';if(window.bbccookies_flag==="ON"&&!bbccookies._acceptsAll()&&!window.bbccookies_disable){document.write(o)}}n()})(); /*]]>*/</script> <script type="text/javascript"> if (! window.gloader) { window.gloader = [ "glow", {map: "https://web.archive.org/web/20150211022154/http://node1.bbcimg.co.uk/glow/glow/map.1.7.7.js"}]; } </script> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://node1.bbcimg.co.uk/glow/gloader.0.1.6.js"></script>  <script type="text/javascript">/*<![CDATA[*/ if (typeof window.define !== 'function' || typeof window.require !== 'function') { document.write('<script class="js-require-lib" src="https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/requirejs/lib.js"><'+'/script>'); } /*]]>*/</script> <script type="text/javascript"> bbcRequireMap = {"jquery-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/jquery/0.3.0/sharedmodules/jquery-1.7.2", "jquery-1.4":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/jquery/0.3.0/sharedmodules/jquery-1.4", "jquery-1.9":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/jquery/0.3.0/sharedmodules/jquery-1.9.1", "swfobject-2":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/swfobject/0.1.10/sharedmodules/swfobject-2", "demi-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/demi/0.10.0/sharedmodules/demi-1", "gelui-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/gelui/0.9.13/sharedmodules/gelui-1", "cssp!gelui-1/overlay":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/gelui/0.9.13/sharedmodules/gelui-1/overlay.css", "istats-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/istats/0.25.1/modules/istats-1", "relay-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/relay/0.2.6/sharedmodules/relay-1", "clock-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/clock-1", "canvas-clock-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/canvas-clock-1", "cssp!clock-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/clock-1.css", "jssignals-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/jssignals/0.3.6/modules/jssignals-1", "jcarousel-1":"https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/jcarousel/0.1.10/modules/jcarousel-1", "bump-3":"//web.archive.org/web/20150211022154/http://emp.bbci.co.uk/emp/bump-3/bump-3"}; require({ baseUrl: 'https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/', paths: bbcRequireMap, waitSeconds: 30 }); </script> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://static.bbci.co.uk/frameworks/barlesque/2.83.4/desktop/3.5/script/barlesque.js"></script>   <script type="text/javascript"> blq.setEnvironment('live'); if (blq.setLabel) blq.setLabel('searchSuggestion', "Search"); if (! /bbc\.co\.uk$/i.test(window.location.hostname) ) { document.documentElement.className += ' blq-not-bbc-co-uk'; } </script> <script type="text/javascript"> /*<![CDATA[*/ function oqsSurveyManager(w, flag) { if (flag !== 'OFF') { w.document.write('<script type="text/javascript" src="https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/frameworks/barlesque/2.83.4/desktop/3.5/script/vendor/edr.js"><'+'/script>'); } } oqsSurveyManager(window, 'ON'); /*]]>*/ </script> <link type="text/css" rel="stylesheet" media="screen" href="https://web.archive.org/web/20150211022154cs_/http://static.bbci.co.uk/modules/identity/statusbar/3.27.2/style/id-gvl-3-5.css"/>     <script type="text/javascript"> if(typeof identity == 'undefined'){ identity = {}; } idProperties = { 'env': 'live', 'staticServer': 'http://', 'dynamicServer': 'https://web.archive.org/web/20150211022154/http://id.bbc.co.uk', 'secureServer': 'https://web.archive.org/web/20150211022154/https://id.bbc.co.uk', 'assetVersion': '3.27.2', 'assetPath': 'https://web.archive.org/web/20150211022154/http://static.bbci.co.uk/modules/identity/statusbar/3.27.2/' }; </script> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://static.bbci.co.uk/modules/identity/statusbar/3.27.2/script/id-core.js"></script> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://static.bbci.co.uk/modules/identity/statusbar/3.27.2/script/id.js"></script> <script type="text/javascript">/*<![CDATA[*/ window.istats = (window.istats || {}); (istats.head = function(w,d) { w.istats._linkTracked = w.istats._trackingCookie = decodeURIComponent( (d.cookie.match(/\bsa_labels=([^;]+)/)||[]).pop() || '' ); var host = w.location.host, m = host.match(/(bbc(?:\.co\.uk|\.com))$/i); d.cookie = 'sa_labels=; expires=Thu, 01 Jan 1970 00:00:01 GMT; domain=' + (m? m[1] : host) + '; path=/'; })(window,document); /*]]>*/</script>   <meta http-equiv="imagetoolbar" content="no"/>   <link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20150211022154cs_/http://news.bbcimg.co.uk/view/3_0_21/cream/hi/shared/type.css"/> <link rel="stylesheet" type="text/css" media="screen" href="https://web.archive.org/web/20150211022154cs_/http://news.bbcimg.co.uk/view/3_0_21/cream/hi/shared/global.css"/> <link rel="stylesheet" type="text/css" media="print" href="https://web.archive.org/web/20150211022154cs_/http://news.bbcimg.co.uk/view/3_0_21/cream/hi/shared/print.css"/> <link rel="stylesheet" type="text/css" media="screen and (max-device-width: 976px)" href="https://web.archive.org/web/20150211022154cs_/http://news.bbcimg.co.uk/view/3_0_21/cream/hi/shared/mobile.css"/> <link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20150211022154cs_/http://news.bbcimg.co.uk/view/3_0_21/cream/hi/shared/components/components.css"/>  <script type="text/javascript"> /*<![CDATA[*/ gloader.load(["glow","1","glow.dom"],{onLoad:function(glow){glow.dom.get("html").addClass("blq-js")}}); gloader.load(["glow","1","glow.dom"],{onLoad:function(glow){glow.ready(function(){if (glow.env.gecko){var gv = glow.env.version.split(".");for (var i=gv.length;i<4;i++){gv[i]=0;}if((gv[0]==1 && gv[1]==9 && gv[2]==0)||(gv[0]==1 && gv[1]<9)||(gv[0]<1)){glow.dom.get("body").addClass("firefox-older-than-3-5");}}});}}); window.disableFacebookSDK=true; if (window.location.pathname.indexOf('+')>=0){window.disableFacebookSDK=true;} /*]]>*/ </script> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://news.bbcimg.co.uk/js/locationservices/locator/v4_0/locator.js"></script> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://news.bbcimg.co.uk/js/core/3_3_1/bbc_fmtj.js"></script> <script type="text/javascript">  </script> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://news.bbcimg.co.uk/js/common/3_2_1/bbc_fmtj_common.js"></script> <script type="text/javascript">$useMap({map:"https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/js/map/map_0_0_35.js"});</script> <script type="text/javascript">$loadView("0.0",["bbc.fmtj.view"]);</script> <script type="text/javascript">$render("livestats-heatmap");</script> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://news.bbcimg.co.uk/js/config/apps/4_7_2/bbc_fmtj_config.js"></script>  <script type="text/javascript"> if (typeof bbcRequireMap !== 'undefined' && bbcRequireMap["jquery-1.9"] === undefined && bbcRequireMap["jquery-1"]) { var jquery19Path = bbcRequireMap["jquery-1"].replace(/0.(1|2).(1|4)/, '0.3.0').replace(/jquery-1.(5|7).(1|2)/, 'jquery-1.9.1'); require({ paths : { "jquery-1.9": jquery19Path } }); } if (typeof bbcRequireMap !== 'undefined' && bbcRequireMap["swfobject-2"]) { require({ paths : { "swfobject-2": bbcRequireMap["swfobject-2"].replace('0.1.3', '0.1.10') } }); } </script> <script type="text/javascript"> require({ paths : { "bump-3": "https://web.archive.org/web/20150211022154/http://emp.bbci.co.uk/emp/bump-3/bump-3" } }); </script>  <script type="text/javascript"> //<![CDATA[ gloader.load(['glow', '1', 'glow.dom']); //]]> </script>  <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://news.bbcimg.co.uk/js/app/av/emp/2_1_8/emp.js"></script>  <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://news.bbcimg.co.uk/js/app/av/emp/2_1_8/compatibility.js"></script> <script type="text/javascript"> //<![CDATA[ // set site specific config bbc.fmtj.av.emp.configs.push('nature'); require(['jquery-1'], function ($) { $(document).ready(function () { bbc.fmtj.av.emp.loadAll(); }); }); //]]> </script>  <meta name="viewport" content="width = 996"/>   <link rel="stylesheet" type="text/css" media="screen" href="https://web.archive.org/web/20150211022154cs_/http://news.bbcimg.co.uk/view/3_0_21/cream/hi/shared/layout/story.css"/> <link rel="stylesheet" type="text/css" media="screen" href="https://web.archive.org/web/20150211022154cs_/http://news.bbcimg.co.uk/view/3_0_21/cream/hi/shared/story.css"/>  <script type="text/javascript">$loadView("0.0",["bbc.fmtj.view.news.story"]);</script>  <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://news.bbc.co.uk/js/app/av/emp/compatibility.js"></script>     <script type="text/javascript">/*<![CDATA[*/if(bbcdotcom===undefined){var bbcdotcom={init:function(a){},objects:function(a){return false},domLoaded:false,data:{ads:0,stats:0,statsProvider:null},adverts:{slot:function(b,a){},layout:{reset:function(){}}},config:{isActive:function(a){return false}},addLoadEvent:function(a){var b=window.onload;if(typeof window.onload!=="function"){window.onload=a}else{window.onload=function(){if(b){b()}a()}}}}}bbcdotcom.objects=function(e,f,g){var d,a,c=arguments,b=e.split(".");if(f===undefined){f="valid"}if(g===undefined){g=window}for(d=0,a=b.length;d<a;d++){if(g[b[d]]===undefined){if(f==="create"){g[b[d]]={}}else{return false}}else{if(typeof g[b[d]]==="function"){if(typeof c[1]!=="undefined"&&c[1]!==null&&g[b[d]](c[1])!==undefined){return g[b[d]](c[1])}else{if(g[b[d]]()!==undefined){return g[b[d]]()}}}}g=g[b[d]]}return g};bbcdotcom.objects("bbcdotcom.stats","create");if(BBC===undefined){var BBC={}}if(BBC.adverts===undefined){BBC.adverts={setZone:function(){},configure:function(){},write:function(){},show:function(){},isActive:function(){return false},setScriptRoot:function(){},setImgRoot:function(){},getAdvertTag:function(){},getSectionPath:function(){}}};/*]]>*/</script> <meta name="application-name" content="BBC"/> <meta name="msapplication-tooltip" content="Explore the BBC, for latest news, sport and weather, TV & radio schedules and highlights, with nature, food, comedy, children's programmes and much more"/> <meta name="msapplication-starturl" content="http://www.bbc.com/?ocid=global-nature-pinned-ie9"/> <meta name="msapplication-window" content="width=1024;height=768"/> <meta name="msapplication-task" content="name=BBC Home;action-uri=http://www.bbc.com/?ocid=global-homepage-pinned-ie9;icon-uri=http://news.bbcimg.co.uk/shared/img/bbccom/favicon_16.ico"/> <meta name="msapplication-task" content="name=BBC News;action-uri=http://www.bbc.com/news/?ocid=global-news-pinned-ie9;icon-uri=http://news.bbcimg.co.uk/shared/img/bbccom/favicon_16.ico"/> <meta name="msapplication-task" content="name=BBC Sport;action-uri=http://www.bbc.com/sport/0/?ocid=global-sport-pinned-ie9;icon-uri=http://news.bbcimg.co.uk/shared/img/bbccom/favicon_16.ico"/> <meta name="msapplication-task" content="name=BBC Future;action-uri=http://www.bbc.com/future?ocid=global-future-pinned-ie9;icon-uri=http://news.bbcimg.co.uk/shared/img/bbccom/favicon_16.ico"/> <meta name="msapplication-task" content="name=BBC Travel;action-uri=http://www.bbc.com/travel?ocid=global-travel-pinned-ie9;icon-uri=http://news.bbcimg.co.uk/shared/img/bbccom/favicon_16.ico"/> <meta name="msapplication-task" content="name=BBC Weather;action-uri=http://www.bbc.co.uk/weather/?ocid=global-weather-pinned-ie9;icon-uri=http://news.bbcimg.co.uk/shared/img/bbccom/favicon_16.ico"/>  <style type="text/css">.bbccom_display_none{display:none;}</style> <script type="text/javascript">/*<![CDATA[*/ if (typeof orb !== 'undefined' && typeof orb.fig === 'function') { bbcdotcom.data = { a: orb.fig('ad')? 1 : 0, b: (0 == orb.fig('uk')) ? 1 : 0, c: orb.fig('ap') }; } else { document.write(unescape('%3Cscript type="text/javascript" src="https://web.archive.org/web/20150211022154/http://tps.bbc.com/wwscripts/data"%3E%3C/script%3E')); } /*]]>*/</script> <script type="text/javascript">/*<![CDATA[*/ if (typeof bbcdotcom.data == 'undefined' || typeof bbcdotcom.data.a == 'undefined' || typeof bbcdotcom.data.b == 'undefined' || typeof bbcdotcom.data.c == 'undefined') { bbcdotcom.data = {a:0,b:0,c:0}; } if (bbcdotcom.data.a == 1) { document.write(unescape('%3Clink href="https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/css/screen/shared/0.3.302/3pt_ads.css" rel="stylesheet" type="text/css" /%3E')); document.write(unescape('%3Cscript type="text/javascript" src="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/wwscripts/flag"%3E%3C/script%3E')); } /*]]>*/</script> <script type="text/javascript">/*<![CDATA[*/ if (typeof bbcdotcom.flag == 'undefined' || bbcdotcom.flag.a != 1) { bbcdotcom.data.a = 0; } /*]]>*/</script>  <script class="kxct" data-id="JZTWpGsM" data-timing="async" data-version="1.9" type="text/javascript"> /*<![CDATA[*/ if (bbcdotcom.data.a == 1 || bbcdotcom.data.b == 1) { window.Krux||((Krux=function(){Krux.q.push(arguments)}).q=[]); (function(){ var k=document.createElement('script');k.type='text/javascript';k.async=true; var m,src=(m=location.href.match(/\bkxsrc=([^&]+)/))&&decodeURIComponent(m[1]); k.src = /^https?:\/\/([a-z0-9_\-\.]+\.)?krxd\.net(:\d{1,5})?\//i.test(src) ? src : src === "disable" ? "" : (location.protocol==="https:"?"https:":"http:")+"//web.archive.org/web/20150211022154/http://cdn.krxd.net/controltag?confid=JZTWpGsM" ; var s=document.getElementsByTagName('script')[0];s.parentNode.insertBefore(k,s); }()); } /*]]>*/ </script>  <script type="text/javascript"> /*<![CDATA[*/ if (bbcdotcom.data.a == 1 || bbcdotcom.data.b == 1) { window.Krux||((Krux=function(){Krux.q.push(arguments);}).q=[]); (function(){ function retrieve(n){ var m, k='kx'+n; if (window.localStorage) { return window.localStorage[k] || ""; } else if (navigator.cookieEnabled) { m = document.cookie.match(k+'=([^;]*)'); return (m && unescape(m[1])) || ""; } else { return ''; } } Krux.user = retrieve('user'); Krux.segments = retrieve('segs') ? retrieve('segs').split(',') : []; // DFP Premium var dfpp = []; if (Krux.user) { dfpp.push('khost=' + encodeURIComponent(location.hostname)); dfpp.push('kuid=' + Krux.user); } for (var i = 0; i < Krux.segments.length; i++ ) { dfpp.push('ksg=' + Krux.segments[i]); } Krux.dfppKeyValues = dfpp.length ? dfpp.join(';') + ';' : ''; })(); } /*]]>*/ </script> <script type="text/javascript">/*<![CDATA[*/ if (bbcdotcom.data.a == 1 || bbcdotcom.data.b == 1) { document.write(unescape('%3Cscript type="text/javascript" src="https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/js/app/bbccom/0.3.302/bbccom_all.js"%3E%3C/script%3E')); } /*]]>*/</script> <script type="text/javascript">/*<![CDATA[*/ if (bbcdotcom.data.a == 1 || bbcdotcom.data.b == 1) { BBC.adverts.setData(bbcdotcom.data); bbcdotcom.config.setAdsEnabled(bbcdotcom.data.a); bbcdotcom.config.setAnalyticsEnabled(bbcdotcom.data.b); bbcdotcom.dataOrb = { ads: bbcdotcom.data.a, stats: bbcdotcom.data.b, statsProvider: bbcdotcom.data.c }; bbcdotcom.config.init(undefined, bbcdotcom.dataOrb, window.location, window.document); if(typeof bbcdotcom !== 'undefined' && typeof bbcdotcom.survey !== 'undefined' && typeof bbcdotcom.survey.init === 'function') { bbcdotcom.survey.init(); } } /* * Native remove content for UK visitors */ (function() { if (bbcdotcom.data.b == 0) { var adKeyword = bbcdotcom.objects('bbc.fmtj.page.adKeyword'); if(adKeyword && adKeyword !== null && typeof adKeyword === 'string' && adKeyword.indexOf('native-') !== -1) { document.write('<style >' + '#storypage-container .story-body {display:none;}' + '#native-uk-disclaimer {border: 2px solid;margin: 8px;padding: 16px;}' + '</style>'); require(['jquery-1'], function($) { $(function(){ /* Native advertising disclaimer */ $( ".story-body" ).html('<div id="native-uk-disclaimer">' + '<h1>BBC Sport (International version)</h1>' + 'We\'re sorry but this article is not accessible from the UK as it is part of our ' + 'international service and is not funded by the license fee.' + '</div>'); $( ".story-body" ).show(); }); }); } } }()); bbcdotcom.objects('page', 'create', bbcdotcom); bbcdotcom.page.edition = '(none)'; bbcdotcom.page.url = '/nature/23809528'; bbcdotcom.page.zoneFile = '3pt_zone_file'; bbcdotcom.page.http_host = 'www.bbc.co.uk'; /*]]>*/</script> <script type="text/javascript">/*<![CDATA[*/if(bbcdotcom.data.a == 1){(function(){switch(bbcdotcom.page.url){case"/":case"/default.stm":bbcdotcom.page.url=(bbcdotcom.page.edition==="domestic")?"/1/hi/default.stm":"/2/hi/default.stm";break;case"/sport":case"/sport/":case"/sport/default.stm":bbcdotcom.page.url=(bbcdotcom.page.edition==="domestic")?"/sport1/hi/default.stm":"/sport2/hi/default.stm";break}BBC.adverts.setScriptRoot("https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/js/app/bbccom/0.3.302/");bbcdotcom.config.setJsPrefix("https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/js/app/bbccom/0.3.302");bbcdotcom.config.setSwfPrefix("https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/shared/swf/bbccom/0.3.302");bbcdotcom.config.setCssPrefix("https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/css/screen/shared/0.3.302");BBC.adverts.setImgRoot("https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/shared/img/bbccom/");BBC.adverts.init({domain:bbcdotcom.page.http_host,location:bbcdotcom.page.url,zoneVersion:bbcdotcom.page.zoneFile,zoneReferrer:document.referrer})}());(function(){if(typeof require!=="undefined"){require({paths:{bbcdotcom:"https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/js/app/bbccom/0.3.302"}})}})();if(BBC.adverts.getV6Gvl3()&&"undefined"!==typeof bbcdotcom.page.bddUseLatestFromTest){document.write(unescape('%3Cscript type="text/javascript" src="https://web.archive.org/web/20150211022154/http://wwwpreview.test.newsonline.tc.nca.bbc.co.uk/js/app/bbccom/'+bbcdotcom.latest_version+'/advert.js"'))}else{if(BBC.adverts.getV6Gvl3()){document.write(unescape('%3Cscript type="text/javascript" src="https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/js/app/bbccom/0.3.302/advert.js"%3E%3C/script%3E'))}}if(/[?|&]metadata=yes(&|$)/.test(window.location.search)){document.write("https://web.archive.org/web/20150211022154/http://www.test.bbc.com/wwscripts/metadata?bbcdotcom_asset="+window.location.hostname+window.location.pathname)};}/*]]>*/</script> <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('ads')) { document.write(unescape('%3Cscript id="gnlAdsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } if (BBC.adverts.isActive('analytics')) { document.write(unescape('%3Cscript id="gnlAnalyticsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } /*]]>*/ </script> <script type="text/javascript"> require({ paths:{ "bbcdotcom": "https://web.archive.org/web/20150211022154/http://news.bbcimg.co.uk/js/app/bbccom/0.3.302" } }); </script> <script type="text/javascript"> /*<![CDATA[*/ document.write(unescape('%3Cscript id="continuous-play-enabled" class="bbccom_display_none"%3E%3C/script%3E')); /*]]>*/ </script> <script type="text/javascript"> if(typeof BBC.adverts != 'undefined' && typeof BBC.adverts.setPageVersion != 'undefined'){ BBC.adverts.setPageVersion('(none)'); } </script>  <link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20150211022154cs_/http://static.bbci.co.uk/thingstodo/v3/styles/ttd-widget-index.css"/>  <link rel="stylesheet" type="text/css" media="screen" href="https://web.archive.org/web/20150211022154cs_/http://news.bbcimg.co.uk/view/3_0_11/cream/hi/nature/skin.css"/> <link rel="stylesheet" type="text/css" media="print" href="https://web.archive.org/web/20150211022154cs_/http://news.bbcimg.co.uk/view/3_0_11/cream/hi/nature/printable.css"/> <script type="text/javascript"> if(bbcdotcom.objects('BBC.adverts.getAdvertTag')) { gloader.load(["glow","1","glow.dom"],{onLoad: function(glow){ glow.ready(function(){ if(bbcdotcom.objects('BBC.adverts.getAdvertTag')) { var adImageUrl = BBC.adverts.getAdvertTag('printableversionsponsorship','','standardUri'); if(adImageUrl) { if (glow.env.ie ) { window.onbeforeprint = function(){ var printAdvert = glow.dom.get("#print-advert"); if (printAdvert.get("img").length == 0) { printAdvert.append('<img src="'+adImageUrl+'" alt="" />'); } }; }else{ glow.dom.get("head").append('<style type="text/css">#print-advert {display:none};</style><style type="text/css" media="print">#print-advert::after{content:url('+adImageUrl+');} #print-advert{display:block;overflow:hidden;}</style>'); } } } }); }}); } </script> <link rel="apple-touch-icon" href="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/img/3_0_4/cream/hi/nature/iphone.png"/> <script type="text/javascript"> blq.externalGoTrackingConfig = { ".story-body a":"{path}/ext/story-body/{dir}", ".story-related .related-links a":"{path}/ext/related-links/{dir}", ".story-related .newstracker-list a":"{path}/ext/newstracker/{dir}" } </script> <style type="text/css"> .ie .blq-mast-bg-transparent-light #blq-blocks, .ie .blq-mast-bg-transparent-light #blq-nav-main, .ie .blq-mast-bg-transparent-light #blq-nav-main li, .ie .blq-mast-bg-transparent-light #id-status, .ie .blq-mast-bg-transparent #blq-mast,.ie .blq-mast-bg-transparent-light #blq-mast, .ie7 .blq-mast-bg-transparent-light #blq-blocks, .ie7 .blq-mast-bg-transparent-light #blq-nav-main, .ie7 .blq-mast-bg-transparent-light #blq-nav-main li, .ie7 .blq-mast-bg-transparent-light #id-status, .ie7 .blq-mast-bg-transparent #blq-mast,.ie7 .blq-mast-bg-transparent-light #blq-mast, .ie8 .blq-mast-bg-transparent-light #blq-blocks, .ie8 .blq-mast-bg-transparent-light #blq-nav-main, .ie8 .blq-mast-bg-transparent-light #blq-nav-main li, .ie8 .blq-mast-bg-transparent-light #id-status, .ie8 .blq-mast-bg-transparent #blq-mast,.ie8 .blq-mast-bg-transparent-light #blq-mast{ border-color: #660; } .ie .blq-masthead-focus #blq-blocks, .ie .blq-masthead-focus #blq-nav-main, .ie .blq-masthead-focus #blq-nav-main li, .ie .blq-masthead-focus #id-status, .ie .blq-masthead-focus #blq-mast,.ie .blq-masthead-focus #blq-mast, .ie7 .blq-masthead-focus #blq-blocks, .ie7 .blq-masthead-focus #blq-nav-main, .ie7 .blq-masthead-focus #blq-nav-main li, .ie7 .blq-masthead-focus #id-status, .ie7 .blq-masthead-focus #blq-mast,.ie7 .blq-masthead-focus #blq-mast, .ie8 .blq-masthead-focus #blq-blocks, .ie8 .blq-masthead-focus #blq-nav-main, .ie8 .blq-masthead-focus #blq-nav-main li, .ie8 .blq-masthead-focus #id-status, .ie8 .blq-masthead-focus #blq-mast,.ie8 .blq-masthead-focus #blq-mast{ border-color: #ccc; } </style>  <link rel="schema.dcterms" href="http://purl.org/dc/terms/"/> <meta name="DCTERMS.created" content="2013-10-21T09:44:35+00:00"/> <meta name="DCTERMS.modified" content="2013-10-21T09:44:35+00:00"/> </head>    <body class="nature"> <div class="livestats-web-bug" id="livestats-web-bug-tag"></div> <script type="text/JavaScript"> var referrer = document.referrer; var livestatsBug = "<img alt='' id='livestats' src='https://web.archive.org/web/20150211022154/http://stats.bbc.co.uk/o.gif?~RS~s~RS~Vision~RS~t~RS~HighWeb_Story~RS~i~RS~23809528~RS~p~RS~101106~RS~a~RS~Domestic~RS~u~RS~/nature/23809528~RS~r~RS~"+referrer+"~RS~q~RS~~RS~z~RS~54~RS~'>"; document.getElementById('livestats-web-bug-tag').innerHTML = livestatsBug; </script> <noscript> <div class="livestats-web-bug"><img alt="" id="livestats" src="https://web.archive.org/web/20150211022154im_/http://stats.bbc.co.uk/o.gif?~RS~s~RS~Vision~RS~t~RS~HighWeb_Story~RS~i~RS~23809528~RS~p~RS~101106~RS~a~RS~Domestic~RS~u~RS~/nature/23809528~RS~q~RS~~RS~z~RS~54~RS~"/></div> </noscript>  <script type="text/javascript">BBC.adverts.write("wallpaper",false);</script> <script type="text/javascript">/*<![CDATA[*/BBC.adverts.wallpaperBodyTag=document.getElementsByTagName("body");BBC.adverts.wallpaperATag=document.getElementsByTagName("a");if("undefined"!=typeof BBC.adverts.wallpaperATag&&"undefined"!=typeof BBC.adverts.wallpaperATag[0]&&"undefined"!=typeof BBC.adverts.wallpaperBodyTag&&"undefined"!=typeof BBC.adverts.wallpaperBodyTag[0]&&-1!==BBC.adverts.wallpaperATag[0].href.indexOf("https://web.archive.org/web/20150211022154/http://ad.doubleclick.net")){BBC.adverts.wallpaperBodyTag[0].removeChild(BBC.adverts.wallpaperATag[0])};/*]]>*/</script>   <script type="text/javascript">/*<![CDATA[*/ bbcFlagpoles_istats = 'ON'; istatsTrackingUrl = '//web.archive.org/web/20150211022154/http://sa.bbc.co.uk/bbc/bbc/s?name=nature.story.23809528.page&cps_asset_id=23809528&page_type=story&section=home&app_version=6.2.162-RC3&first_pub=2013-10-21T09:44:35+00:00&last_editorial_update=2013-10-21T09:44:35+00:00&title=BBC+Nature+FAQs&comments_box=false&cps_media_type=&cps_media_state=&by_nation=&app_type=web&ml_name=SSI&ml_version=0.25.1&language=en-GB'; if (window.istats_countername) { istatsTrackingUrl = istatsTrackingUrl.replace(/([?&]name=)[^&]+/ig, '$1' + istats_countername); } (function() { if ( /\bIDENTITY=/.test(document.cookie) ) { istatsTrackingUrl += '&bbc_identity=1'; } var c = (document.cookie.match(/\bckns_policy=(\d\d\d)/)||[]).pop() || ''; istatsTrackingUrl += '&bbc_mc=' + (c? 'ad'+c.charAt(0)+'ps'+c.charAt(1)+'pf'+c.charAt(2) : 'not_set'); if ( /\bckns_policy=\d\d0/.test(document.cookie) ) { istatsTrackingUrl += '&ns_nc=1'; } var screenWidthAndHeight = 'unavailable'; if (window.screen && screen.width && screen.height) { screenWidthAndHeight = screen.width + 'x' + screen.height; } istatsTrackingUrl += ('&screen_resolution=' + screenWidthAndHeight); istatsTrackingUrl += '&blq_s=3.5d&blq_r=3.5&blq_v=journalism-worldwide&blq_e=webservice-HTML'; })(); /*]]>*/</script>  <script type="text/javascript">/*<![CDATA[*/ (function() { window.istats || (istats = {}); var cookieDisabled = (document.cookie.indexOf('NO-SA=') != -1), hasCookieLabels = (document.cookie.indexOf('sa_labels=') != -1), hasClickThrough = /^#sa-(.*?)(?:-sa(.*))?$/.test(document.location.hash), runSitestat = !cookieDisabled && !hasCookieLabels && !hasClickThrough && !istats._linkTracked; if (runSitestat && bbcFlagpoles_istats === 'ON') { sitestat(istatsTrackingUrl); } else { window.ns_pixelUrl = istatsTrackingUrl; /* used by Flash library to track */ } function sitestat(n){var j=document,f=j.location,b="";if(j.cookie.indexOf("st_ux=")!=-1){var k=j.cookie.split(";");var e="st_ux",h=document.domain,a="/";if(typeof ns_!="undefined"&&typeof ns_.ux!="undefined"){e=ns_.ux.cName||e;h=ns_.ux.cDomain||h;a=ns_.ux.cPath||a}for(var g=0,f=k.length;g<f;g++){var m=k[g].indexOf("st_ux=");if(m!=-1){b="&"+unescape(k[g].substring(m+6))}}document.cookie=e+"=; expires="+new Date(new Date().getTime()-60).toGMTString()+"; path="+a+"; domain="+h}ns_pixelUrl=n;n=ns_pixelUrl+"&ns__t="+(new Date().getTime())+"&ns_c="+((j.characterSet)?j.characterSet:j.defaultCharset)+"&ns_ti="+escape(j.title)+b+"&ns_jspageurl="+escape(f&&f.href?f.href:j.URL)+"&ns_referrer="+escape(j.referrer);if(n.length>2000&&n.lastIndexOf("&")){n=n.substring(0,n.lastIndexOf("&")+1)+"ns_cut="+n.substring(n.lastIndexOf("&")+1,n.lastIndexOf("=")).substring(0,40)}(j.images)?new Image().src=n:j.write('<p><i'+'mg src="'+n+'" height="1" width="1" alt="" /></p>')}; })(); /*]]>*/</script> <noscript><p style="position: absolute; top: -999em;"><img src="//web.archive.org/web/20150211022154im_/http://sa.bbc.co.uk/bbc/bbc/s?name=nature.story.23809528.page&cps_asset_id=23809528&page_type=story&section=home&app_version=6.2.162-RC3&first_pub=2013-10-21T09:44:35+00:00&last_editorial_update=2013-10-21T09:44:35+00:00&title=BBC+Nature+FAQs&comments_box=false&cps_media_type=&cps_media_state=&by_nation=&app_type=web&ml_name=SSI&ml_version=0.25.1&language=en-GB&blq_s=3.5d&blq_r=3.5&blq_v=journalism-worldwide&blq_e=webservice-HTML" height="1" width="1" alt=""/></p></noscript>  <div id="blq-global"> <noscript> <div id="blq-no-js-banner"> <p>For a better experience on your device, try our <a href="https://web.archive.org/web/20150211022154/http://m.bbc.co.uk/">mobile site</a>.</p> </div> </noscript> <div id="blq-pre-mast" xml:lang="en-GB">   </div> </div> <script type="text/html" id="blq-bbccookies-tmpl"><![CDATA[ <div id="bbccookies-prompt" class="bbccookies-w"> <h2> Cookies on the BBC website </h2> <p> We use cookies to ensure that we give you the best experience on our website.<span class="bbccookies-international-message"> We also use cookies to ensure we show you advertising that is relevant to you.</span> If you continue without changing your settings, we'll assume that you are happy to receive all cookies on the BBC website. However, if you would like to, you can <a href="/privacy/cookies/managing/cookie-settings.html">change your cookie settings</a> at any time. </p> <ul> <li id="bbccookies-continue"> <button type="button" id="bbccookies-continue-button">Continue</button> </li> <li id="bbccookies-more"><a href="/privacy/cookies/bbc">Find out more</a></li></ul> </div> ]]></script> <script type="text/javascript">/*<![CDATA[*/ (function(){if(bbccookies._showPrompt()){var i=document,b=i.getElementById("blq-pre-mast"),f=i.getElementById("blq-global"),h=i.getElementById("blq-container"),c=i.getElementById("blq-bbccookies-tmpl"),a,g,e;if(b&&i.createElement){a=i.createElement("div");a.id="bbccookies";e=c.innerHTML;e=e.replace("<"+"![CDATA[","").replace("]]"+">","");a.innerHTML=e;if(f){f.insertBefore(a,b)}else{h.insertBefore(a,b)}g=i.getElementById("bbccookies-continue-button");g.onclick=function(){a.parentNode.removeChild(a);return false};bbccookies._setPolicy()}}})(); /*]]>*/</script> <div id="blq-masthead" class="blq-clearfix blq-mast-bg-transparent-light blq-lang-en-GB blq-ltr"> <span id="blq-mast-background"><span></span></span> <div id="blq-mast" class="blq-rst"> <div id="blq-mast-bar" class="blq-masthead-container blq-journalism-worldwide"> <div id="blq-blocks"> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/" hreflang="en-GB"> <abbr title="British Broadcasting Corporation" class="blq-home"> <img src="https://web.archive.org/web/20150211022154im_/http://static.bbci.co.uk/frameworks/barlesque/2.83.4/desktop/3.5/img/blq-blocks_grey_alpha.png" alt="BBC" width="84" height="24"/> </abbr> </a> </div> <div id="blq-acc-links"> <h2 id="page-top">Accessibility links</h2> <ul> <li><a href="#main-content">Skip to content</a></li> <li><a href="#blq-local-nav">Skip to local navigation</a></li> <li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/accessibility/">Accessibility Help</a></li> </ul> </div> <div id="blq-sign-in" class="blq-gel"> <div id="id-status"><div class="id-out id-gel"><h2 class="blq-hide">BBC iD</h2><a href="https://web.archive.org/web/20150211022154/https://id.bbc.co.uk/users/signin?s=sb&target_resource=http%3A%2F%2Fidentity%2Fpolicies%2Fdna%2Fadult" class="blq-nogo has-ptrt idSignin"><span class="id-icon"><span></span></span>Sign in<span class="id-spinner"></span></a></div></div> </div> <div id="blq-nav"> <h2>BBC navigation</h2> <ul id="blq-nav-main"> <li id="blq-nav-news"> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.com/news/">News</a> </li> <li id="blq-nav-sport"> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/sport/">Sport</a> </li> <li id="blq-nav-weather"> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/weather/">Weather</a> </li> <li id="blq-nav-earth"> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.com/earth/">Earth</a> </li> <li id="blq-nav-future"> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.com/future/">Future</a> </li> <li id="blq-nav-shop"> <a href="https://web.archive.org/web/20150211022154/http://shop.bbc.com/">Shop</a> </li> <li id="blq-nav-tv"> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/tv/">TV</a> </li> <li id="blq-nav-radio"> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/radio/">Radio</a> </li> <li id="blq-nav-more"> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/a-z/">More…</a> </li> </ul> <div id="blq-nav-search"> <form method="get" action="https://web.archive.org/web/20150211022154/http://search.bbc.co.uk/search" accept-charset="utf-8" id="blq-search-form"> <div> <input type="hidden" name="go" value="toolbar"/> <input type="hidden" value="http://www.bbc.co.uk/nature/23809528" name="uri"/> <input type="hidden" name="scope" value="all:scienceandnature"/> <label for="blq-search-q" class="blq-hide">Search term:</label> <input id="blq-search-q" type="text" name="q" value="" maxlength="128"/> <button id="blq-search-btn" type="submit"><span><img src="https://web.archive.org/web/20150211022154im_/http://static.bbci.co.uk/frameworks/barlesque/2.83.4/desktop/3.5/img/blq-search_grey_alpha.png" width="13" height="13" alt="Search"/></span></button> </div> </form> </div> </div> </div> </div> </div> <div id="blq-container-outer" class="blq-journalism-worldwide blq-ltr"> <div id="blq-container" class="blq-lang-en-GB blq-dotcom"> <div id="blq-container-inner" xml:lang="en-GB"> <div id="blq-main" class="blq-clearfix"> <div class="home has-no-ticker "> <div id="header-wrapper"> <h2 id="header"> <a rel="index" href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/"><img alt="BBC Nature" src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/img/3_0_4/cream/hi/nature/nature-blocks.gif"/></a> <span class="section-updated"> <span class="date">21 October 2013</span> <span class="time-text">Last updated at </span><span class="time">10:44</span> </span> </h2> <div class="bbccom_advert_placeholder"> <script type="text/javascript">$render("advert","advert-sponsor-section");</script> </div> <script type="text/javascript">$render("advert-post-script-load");</script> <div id="blq-local-nav"> <ul id="nav" class="nav"> <li class="first-child selected"><a href="/web/20150211022154/http://www.bbc.co.uk/nature/">Home</a></li> <li><a href="/web/20150211022154/http://www.bbc.co.uk/nature/news/">News</a></li> <li><a href="/web/20150211022154/http://www.bbc.co.uk/nature/features/">Features</a></li> <li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/collections">Video collections</a></li> <li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/wildlife/">Wildlife</a></li> <li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/prehistoric">Prehistoric life</a></li> <li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/places">Places</a></li> <li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/23809528">FAQs</a></li> </ul> </div> </div>  <div id="content-wrapper" class="domestic"> <div class="advert"> <div class="bbccom_advert_placeholder"> <script type="text/javascript">$render("advert","advert-leaderboard");</script> </div> <script type="text/javascript">$render("advert-post-script-load");</script> </div> <div id="bbccom_custom_branding"> <script type="text/javascript"> /*<![CDATA[*/ if(typeof bbcdotcom.objects('bbcdotcom.branding.init') === 'function') { bbcdotcom.branding.init(BBC.adverts.getZoneData().zone, BBC.adverts.getAdKeyword()); bbcdotcom.branding.write(); } /*]]>*/ </script> <div class="bbccom_advert_placeholder"> <script type="text/javascript"> /*<![CDATA[*/ $render("advert","advert-sponsor-subsection"); /*]]>*/ </script> </div> </div> <script type="text/javascript"> /*<![CDATA[*/ $render("advert-post-script-load"); /*]]>*/ </script>  <div id="main-content" class="story blq-clearfix"> <div id="print-advert"> </div> <div class="layout-block-a"> <div class="story-body"> <span class="story-date"> <span class="date">21 October 2013</span> <span class="time-text">Last updated at </span><span class="time">10:44</span> </span> <div id="page-bookmark-links-head" class="share-help"> <h3>Share this page</h3> <ul> <li class="delicious"> <a title="Post this story to Delicious" href="https://web.archive.org/web/20150211022154/http://del.icio.us/post?url=http://www.bbc.co.uk/nature/23809528&title=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">Delicious</a> </li> <li class="digg"> <a title="Post this story to Digg" href="https://web.archive.org/web/20150211022154/http://digg.com/submit?url=http://www.bbc.co.uk/nature/23809528&title=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">Digg</a> </li> <li class="facebook"> <a title="Post this story to Facebook" href="https://web.archive.org/web/20150211022154/http://www.facebook.com/sharer.php?u=http://www.bbc.co.uk/nature/23809528&t=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">Facebook</a> </li> <li class="reddit"> <a title="Post this story to reddit" href="https://web.archive.org/web/20150211022154/http://reddit.com/submit?url=http://www.bbc.co.uk/nature/23809528&title=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">reddit</a> </li> <li class="stumbleupon"> <a title="Post this story to StumbleUpon" href="https://web.archive.org/web/20150211022154/http://www.stumbleupon.com/submit?url=http://www.bbc.co.uk/nature/23809528&title=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">StumbleUpon</a> </li> <li class="twitter"> <a title="Post this story to Twitter" href="https://web.archive.org/web/20150211022154/http://twitter.com/home?status=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions+http://www.bbc.co.uk/nature/23809528">Twitter</a> </li> <li class="email"> <a title="Email this story" href="https://web.archive.org/web/20150211022154/http://newsvote.bbc.co.uk/mpapps/pagetools/email/www.bbc.co.uk/nature/23809528">Email</a> </li> <li class="print"> <a title="Print this story" href="?print=true">Print</a> </li> </ul>  </div> <script type="text/javascript">  </script> <h1 class="story-header">FAQs - BBC Nature Frequently Asked Questions</h1> <p class="introduction">We hope you enjoy our site and understand you may have some questions. Please check through our FAQs below to see if there is already an answer to your query.</p> <p>If you have a general query about the BBC please look at the <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/info/">About the BBC website</a> or the <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/help/" title="Help on the BBC website">help pages</a>.</p> <p>If you have a complaint about the BBC, our programmes or services, please send it via the <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/complaints/" title="How to submit a complaint to the BBC">central BBC Complaints site</a>.</p> <span class="cross-head">Why are some video clips not working?</span> <p>There are three possible reasons for this: </p> <p>If you are outside of the UK, unfortunately not all of our clips are available internationally due to copyright restrictions and co-producer funding requirements. We are busy working to make more available throughout the year but unfortunately cannot give specific details about if and when particular clips will become internationally available.</p> <p>If you were trying to view a clip on our site on an iOS device then unfortunately it will not play. We are aware of this problem and we are working on a solution but we cannot give specific details of when a fix will be released.</p> <p>The reason could also be that you do not have an up-to-date Flash plug-in that is required if browsing our clips in Firefox and Chrome in Windows 7.</p> <span class="cross-head">What's this site for?</span> <p>We aim to give you access to some of the best natural history content in the world - whether that's from the BBC archive, from tonight's TV and radio or right now from the field. We hope you find the content entertaining and informative and enjoy exploring the amazing diversity of the natural world.</p> <span class="cross-head">You seem to be missing a lot of species - what about this one?</span> <p>We are not trying to be encyclopaedic - others are much better placed to provide this service.</p> <p>Our purpose is to help you explore the natural world through BBC content: because we don't have content about the majority of the world's species we don't have a page for the majority of species.</p> <span class="cross-head">How can I buy a DVD or CD of BBC content?</span> <p>If you would like to purchase a DVD or CD of BBC content, please visit <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/faqs/tv_dvd">http://www.bbc.co.uk/faqs/tv_dvd</a> to help you find commercially available BBC programming from online suppliers.</p> <span class="cross-head">How can I get permission to use a clip from a BBC programme?</span> <p>Companies that wish to use extracts from a BBC programme commercially should contact <a href="https://web.archive.org/web/20150211022154/mailto:motiongallery.uk@bbc.co.uk">BBC Motion Gallery</a>, run by our commercial sister company <a href="https://web.archive.org/web/20150211022154/http://www.bbcmotiongallery.com/">BBC Worldwide</a> or call them on: +44 (0)208 433 2861</p> <p>For personal use, please visit the <a href="https://web.archive.org/web/20150211022154/http://www.bbcworldwide.com/contact-us.aspx#programmes">BBC Worldwide website</a>. </p> <p>If you're a school teacher and wish to purchase BBC programmes for educational purposes, or if you want copies of BBC programmes for use in education and training environments in higher education, companies and public bodies, please contact <a href="https://web.archive.org/web/20150211022154/http://www.bbcactivevideoforlearning.com/1/Home.aspx" title="BBC Active page">BBC Active</a> with your request.</p> <span class="cross-head">How can I get permission to use pictures from the BBC Nature website?</span> <p>If you are looking to use one of the images on our pages, please check the copyright information on the image. We buy licences for most of the images on our pages and do not own the copyright for them so you will have to contact the stills library cited in the bottom corner of the image.</p> <p>If there is no information in the bottom corner, this usually means that the BBC owns the copyright for the image. The <a href="https://web.archive.org/web/20150211022154/mailt:photo.library@bbc.co.uk " title="BBC photo library team email">BBC's photo library team</a> deals with requests for BBC copyright images held within the archive. If you are looking to reuse images in a non-BBC context you will be required to sign our terms of trade and all research and reuse will be chargeable. </p> <p>If you are enquiring about an image that you have seen on a BBC news website story, please email the <a href="https://web.archive.org/web/20150211022154/mailto:inpictures@bbc.co.uk" title="BBC News picture desk">In Pictures team</a>.</p> <p>For enquiries relating to TV footage and 'screen grabs', please email <a href="https://web.archive.org/web/20150211022154/mailto:motiongallery.uk@bbc.co.uk" title="BBC Motion Gallery email address">BBC Motion Gallery</a></p> <span class="cross-head">How can I get permission to use music from a nature programme?</span> <p>Please note the BBC can only help with requests for BBC-commissioned music. Please e-mail the <a href="https://web.archive.org/web/20150211022154/mailto:musiclicensingbbcw@bbc.com" title="BBC Worldwide: Music Licensing Department">Music Licensing Department</a> or call +44 (0)208 433 1707.</p> <span class="cross-head">How can I contact David Attenborough?</span> <p>Unfortunately we cannot pass on any messages to David Attenborough.</p> <p><strong>How do I get a job/ work experience in natural history at the BBC?</strong></p> <p>For job vacancies, please visit the <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/careers/home" title="Search for jobs on the BBC Careers site">BBC Careers</a> site.</p> <p>If you have experience in production, add your CV to the <a href="https://web.archive.org/web/20150211022154/https://www.bbcproductiontalent.co.uk/Main.aspx">BBC's Production Talent database</a>.</p> <p>For work experience opportunities, please visit the <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/careers/work-experience/">BBC's work experience site</a>.</p> <p>If you are a company that can provide specialist skills, please visit the <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/supplying/become-a-supplier/" title="BBC preferred suppliers page">BBC preferred suppliers</a> web page.</p> <span class="cross-head">Can you help me identify this animal/tell me more about this animal?</span> <p>Unfortunately we do not have the resources to answer the high volume of wildlife queries we receive each day. However, if you have a photo of the plant or animal in question, try uploading your image to the <a href="www.ispot.org.uk">iSpot website</a>, an external site run by the Open University, to see if someone there can help you.</p> <p>For bird-related queries, try asking on the <a href="https://web.archive.org/web/20150211022154/http://www.rspb.org.uk/community/wildlife/f/901.aspx" title="The RSPB wildlife question forum page">RSPB wildlife question forum</a>.</p> <p>For insect/invertebrate queries, try contacting <a href="https://web.archive.org/web/20150211022154/http://www.buglife.org.uk/AboutBuglife/howtocontactus" title="The Buglife contact us page">Buglife, The Invertebrate Conservation Trust</a>.</p> <p>For mammal queries, try contacting <a href="https://web.archive.org/web/20150211022154/http://www.mammal.org.uk/contact_us " title="The Mammal Society Contact us page">The Mammal Society</a>.</p> <p><strong><em>Please note that the BBC is not responsible for the content of external internet sites.</em></strong></p> <span class="cross-head">How do I contact the Springwatch/ Autumnwatch/ Winterwatch team?</span> <p>Email the <a href="https://web.archive.org/web/20150211022154/mailto:springwatch@bbc.co.uk" title="Springwatch email address">Springwatch </a>team.</p> <p>Email the <a href="https://web.archive.org/web/20150211022154/mailto:autumnwatch@bbc.co.uk" title="Autumnwatch email address">Autumnwatch </a>team.</p> <p>Email the <a href="https://web.archive.org/web/20150211022154/mailto:winterwatch@bbc.co.uk" title="Winterwatch email address">Winterwatch </a>team.</p> <span class="cross-head">Why doesn't the Summer of Wildlife Handbook download?</span> <p>If you are experiencing difficulties, please email the <a href="https://web.archive.org/web/20150211022154/mailto:summerofwildlife@bbc.co.uk" title="Summer of Wildlife email">Summer of Wildlife</a> team.</p> <span class="cross-head">How do I submit my nature ideas to the BBC?</span> <p>For news story ideas, please visit the <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/news/10725415" title="BBC News: Have Your Say">'Have Your Say'</a> section of the BBC News website with any story ideas. Enquiries via this route are dealt with by a dedicated team who can pass your story to the appropriate journalist.</p> <p><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/commissioning/technology-online/ " title="BBC Commissioning: How to submit an online and Red Button idea.">How to submit online and Red Button ideas.</a></p> <p><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/commissioning/tv/pitching-ideas/ideas-from-the-public.shtml" title="BBC Commissioning: How to submit television programme ideas">How to submit television programme ideas. </a></p> <p><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/commissioning/radio/" title="BBC Commissioning: How to submit radio programme ideas">How to submit radio programme ideas.</a></p> <span class="cross-head">How can I add our nature activities & events to Things to Do?</span> <p>If you are a not-for-profit organisation that runs nature activities involving active participation, please visit the <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/thingstodo/activitymaker">Things to Do activity maker page</a> for more information on how you can register.</p> <span class="cross-head">Walruses and aardvarks - why don't you link to everything?</span> <p>There are a couple of reasons why we might not provide a link to a particular taxon - the most likely reason is that we simply don't have any content about it. If we don't have any information, we aren't linking to it.</p> <p>The other reason is that some species - such as walruses and aardvarks are the only living representative species in their genus and family (or order in the case of aardvarks). This means that we don't have anything to say about their genus, family etc and so don't have a page about them.</p> <span class="cross-head">Why does your map look funny?</span> <p>All maps are a compromise, they have at least one sort of distortion; this is because maps are projections of a sphere on to a plane.</p> <p>We are using the Robinson projection - this projection has the disadvantage of being heavily distorted near the poles (the distortions elsewhere are much less severe) but importantly has the advantage of providing a good representation of the surface area. (Many projections don't seek to preserve the surface area which is why Greenland can appear to be the same size as Africa).</p> <span class="cross-head">Where are you getting your species distribution data?</span> <p>The data is sourced from WWF's Wildfinder, more information on which can be found on the <a href="https://web.archive.org/web/20150211022154/http://www.worldwildlife.org/wildfinder/" title="WWF Wildfinder site">Wildfinder site</a>.</p> <p>WWF, in turn, sourced the data from here:</p> <p>• <a href="https://web.archive.org/web/20150211022154/http://research.amnh.org/herpetology/amphibia/index.php">AMNH Amphibian Database for amphibians</a></p> <p>• <a href="https://web.archive.org/web/20150211022154/http://www.reptile-database.org/">EMBL Database for reptiles</a></p> <p>• <a href="https://web.archive.org/web/20150211022154/http://www.ornitaxa.com/SM/SMOrg/sm.html">Sibley and Monroe for birds</a></p> <p>• <a href="https://web.archive.org/web/20150211022154/http://nmnhgoph.si.edu/msw/">Wilson and Reeder for mammals</a></p> <p>Modifications to these lists have been made, by WWF, at the suggestion of regional and taxonomic experts.</p> <span class="cross-head">What about the information on adaptations, where's that from?</span> <p>We are making extensive use of <a href="https://web.archive.org/web/20150211022154/http://aisl.umbc.edu/show/resource/id/332/ETHAN:%20the%20Evolutionary%20Trees%20and%20Natural%20History%20Ontology.html">ETHAN (Evolutionary Trees and Natural History Ontology)</a> as used by the University of Michigan Museum of Zoology's <a href="https://web.archive.org/web/20150211022154/http://animaldiversity.ummz.umich.edu/">Animal Diversity Web</a> to provide us with information about the adaptations and behaviours associated with each species.</p> <span class="cross-head">The species distribution data looks wrong to me - what's going on?</span> <p>The maps show a set of <a href="https://web.archive.org/web/20150211022154/http://en.wikipedia.org/wiki/Ecoregion" title="ecoregions - Wikipedia">ecoregions</a> in which the species occurs, not a precise range map for the species.</p> <p>The database only records the presence or absence of each species in each ecoregion. This means that even if a species is only found in one location within an ecoregion the entire region will be highlighted. This will typically overestimate the geographic range for a species.</p> <span class="cross-head">What does the Conservation Status mean?</span> <p>The IUCN Red List evaluates the extinction risk of thousands of species and subspecies around the world.</p> <p>The <a href="https://web.archive.org/web/20150211022154/http://www.iucnredlist.org/">IUCN Red List of Threatened Species</a> (also know as the IUCN Red List or Red Data List) is recognised as the world's most authoritative inventory of the global conservation status of plant and animal species.</p> <p>Species are classified in nine groups, based on criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmentation.</p> <p>• Extinct (EX) - No individuals remaining</p> <p>• Extinct in the Wild (EW) - Known only to survive in captivity, or as a naturalised population outside its historic range</p> <p>• Critically Endangered (CR) - Extremely high risk of extinction in the wild</p> <p>• Endangered (EN) - Very high risk of extinction in the wild</p> <p>• Vulnerable (VU) - High risk of extinction in the wild</p> <p>• Near Threatened (NT) - Likely to become endangered in the near future</p> <p>• Least Concern (LC) - Lowest risk. Does not qualify for a more at risk category. Widespread and abundant taxa are included in this category</p> <p>• Data Deficient (DD) - Not enough data to make an assessment of its risk of extinction</p> <p>• Not Evaluated (NE) - Has not yet been evaluated against the criteria</p> <p>The term 'threatened' is a grouping of: Critically Endangered, Endangered, and Vulnerable.</p> <span class="cross-head">Why is the BBC using Wikipedia?</span> <p>We know that many people would like to find out more about the natural world, and background information about the species, habitats and adaptations we cover is one of the key things that people expect to find on our pages.</p> <p>However, we feel that we provide best value to the licence fee payer by concentrating our resources on providing great original content and making it easy to find that content on the web.</p> <p>By incorporating content from <a href="https://web.archive.org/web/20150211022154/http://www.wikipedia.org/" title="Wikipedia site">Wikipedia</a> we can offer good quality background information across the breadth of natural history content, while focusing on bringing unique content online.</p> <p>Wikipedia is licensed under the <a href="https://web.archive.org/web/20150211022154/http://www.gnu.org/licenses/fdl.html" title="GNU Free Documentation Licence site">GNU Free Documentation Licence</a>, which means not only is there no licensing cost to the licence fee payer for this text, but it is also freely available to all our users to use and share in turn. At the BBC we are not only using the content that is already published on Wikipedia, but also improving those articles and creating new ones where none exist. This should improve <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/" title="BBC homepage">bbc.co.uk</a>, Wikipedia and any other site that uses Wikipedia.</p> <span class="cross-head">What if I find some content that's inaccurate from Wikipedia?</span> <p>Everybody is welcome to edit Wikipedia, and we are very keen to encourage experts among our users to contribute in this way. Links are displayed on every page that incorporates Wikipedia content, to edit entries please go to Wikipedia and edit the article there.</p> <span class="cross-head">What happens if somebody decides to vandalise content on Wikipedia deliberately?</span> <p>Our first resort is to rely on Wikipedia's own community and conventions which have generally proved robust in their response to vandalism. The Wikipedia policy on vandalism can be found here: <a href="https://web.archive.org/web/20150211022154/http://en.wikipedia.org/wiki/Wikipedia_vandalism" title="Wikipedia policy on vandalism">http://en.wikipedia.org/wiki/Wikipedia_vandalism</a>. However, if it comes to our attention, for example via a user complaint, that there is a persistent problem with offensive or defamatory content being included from Wikipedia on any of our pages, we also have the option of suspending the inclusion of that information on the page in question until we're satisfied that the problem has been resolved. In the unlikely event that you have spotted something offensive please contact us and let us know.</p> <span class="cross-head">What natural history programmes are on the TV and radio?</span> <p>A full list of <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/programmes" title="BBC programmes site">BBC programmes</a>, those <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/iplayer/" title="BBC iPlayer site">currently available on iPlayer</a>, those coming up in the next 7 days and podcasts are available on the <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/programmes/genres/factual/scienceandnature" title="BBC Science & Nature Programmes page">Science & Nature Programmes page</a>.</p> <span class="cross-head">Where's your API?</span> <p>Our website is our API - you can access the site as RDF/XML or RSS. For more information please see <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/feedsanddata" title="BBC Nature feeds and data">feeds and data</a>.</p> <span class="cross-head">What's the banner image of?</span> <p>Here is a list of all the banner images we have used across our site:</p> <p><strong>Wildlife</strong></p> <p>• Birds: Scarlet Macaw feathers</p> <p>• Amphibians: Northern Leopard Frog, Ontario, Canada</p> <p>• Mammals: Jackal Fur </p> <p>• Reptiles: Alligator scales</p> <p>• Cartilaginous Fishes: Whale Shark skin</p> <p>• Star Fish: Red starfishes, Mexico, Sea of Cortez, Baja California, La Paz</p> <p>• Ray-finned Fishes: Spotted scorpionfish</p> <p>• Spiders: A house spider sitting in a bathroom sink, London</p> <p>• Insects: Wasp Eye</p> <p>• Sea Urchins: Red and purple urchins</p> <p>• Corals and sea anemones: Various types of coral in an aquarium at London Zoo</p> <p>• Cephalopods: Reef Octopus Suckers</p> <p>• Lobsters: Regal slipper lobster</p> <p>• Millipedes: Giant Millipede Shell</p> <p>• Polychaete Worms: Fan worm, Gozo, Malta</p> <p>• Lobe-finned fishes: Prehistoric Coelacanth digital illustration of a fish that was believed to have become extinct during the Cretaceous Period. Specimens have recently been found in Indonesia.</p> <p>• Barnacles: Barnacles from Bucks Mill beach, Devon, UK</p> <p>• Mollusca: Giant African landsnail.</p> <p>• Animals: Herd of wildebeest on a field, Tanzania</p> <p>• Chordates: Cat X-Ray.</p> <p>• Arthropods: Caterpillar larva of death's head hawk moth feeding on potato foliage, Camargue, France</p> <p>• Jellyfish: Red starfishes, Asteroidea, Mexico, Sea of Cortez, Baja California, La Paz</p> <p>• Lampreys: Sea lamprey close up of disk-shaped mouth with horny teeth, Europe</p> <p>• Whales: Bryde's whale with throat pleats expanded after feeding on baitball of Sardines off Baja California, Mexico, Eastern Pacific Ocean</p> <p>• Plants: Close-up of leaf vein structure in Fig leaf, Dorset, UK</p> <p>• Fungi: Close up of gills of the Field mushroom in Dorset, England</p> <p>• Chromista: Giant Kelp close up with detail of floats. Catalina Island, California, USA</p> <p><strong>Behaviours</strong></p> <p>• Adapted to extremes: Polar bear resting in blizzard, Churchill, Manitoba, Canada</p> <p>• Animal intelligence: Hooded Crow trying to open a bottle, Liminka Finland May</p> <p>• Behavioural pattern: Wildebeest herd</p> <p>• Communication and senses: Common cuttlefish</p> <p>• Ecosystem roles: Wasp beetle on an Ox-eye daisy flower</p> <p>• Feeding habits: Schooling bigeye jacks</p> <p>• Life cycle: Agile frog developing embryo Italy</p> <p>• Locomotion: Bottlenose dolphins jumping at sunset, Caribbean</p> <p>• Morphology: Close-up of shells of snails </p> <p>• Predation strategy: Crocodile Teeth</p> <p>• Reproduction strategy: Frog Spawn</p> <p>• Social behaviour: Honey Bees</p> <p>• Survival strategy: Yellow pygmy seahorse camouflaged amongst coral, Indo-pacific</p> <span class="cross-head">Habitats</span> <p>• Terrestrial: Rock Formations in Zhang Jia Jie National Park' It's in Hunan Province, China</p> <p>• Freshwater: Forest in Skate Creek, Washington, USA</p> <p>• Marine: Coral reef scenic from Raja Empat, Indonesia</p> <span class="cross-head">Ecozones</span> <p>• Penwith peninsula, Cornwall, UK</p> <span class="cross-head">Wildlife Finder</span> <p>• Tropical ladybird on leaf, Tambopata National Reserve, Amazonia, Peru</p> </div> <div>  </div> <div class="share-body-bottom"> <div id="page-bookmark-links-foot" class="share-help"> <h3>Share this page</h3> <ul> <li class="delicious"> <a title="Post this story to Delicious" href="https://web.archive.org/web/20150211022154/http://del.icio.us/post?url=http://www.bbc.co.uk/nature/23809528&title=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">Delicious</a> </li> <li class="digg"> <a title="Post this story to Digg" href="https://web.archive.org/web/20150211022154/http://digg.com/submit?url=http://www.bbc.co.uk/nature/23809528&title=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">Digg</a> </li> <li class="facebook"> <a title="Post this story to Facebook" href="https://web.archive.org/web/20150211022154/http://www.facebook.com/sharer.php?u=http://www.bbc.co.uk/nature/23809528&t=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">Facebook</a> </li> <li class="reddit"> <a title="Post this story to reddit" href="https://web.archive.org/web/20150211022154/http://reddit.com/submit?url=http://www.bbc.co.uk/nature/23809528&title=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">reddit</a> </li> <li class="stumbleupon"> <a title="Post this story to StumbleUpon" href="https://web.archive.org/web/20150211022154/http://www.stumbleupon.com/submit?url=http://www.bbc.co.uk/nature/23809528&title=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions">StumbleUpon</a> </li> <li class="twitter"> <a title="Post this story to Twitter" href="https://web.archive.org/web/20150211022154/http://twitter.com/home?status=BBC+Nature+-+FAQs+-+BBC+Nature+Frequently+Asked+Questions+http://www.bbc.co.uk/nature/23809528">Twitter</a> </li> <li class="email"> <a title="Email this story" href="https://web.archive.org/web/20150211022154/http://newsvote.bbc.co.uk/mpapps/pagetools/email/www.bbc.co.uk/nature/23809528">Email</a> </li> <li class="print"> <a title="Print this story" href="?print=true">Print</a> </li> </ul>  <div class="bbccom_advert_placeholder"> <script type="text/javascript">$render("advert","advert-sponsor-module","page-bookmark-links");</script> </div> <script type="text/javascript">$render("advert-post-script-load");</script> </div> <script type="text/javascript">  </script> </div> <div class="bbccom_advert_placeholder"> <script type="text/javascript">$render("advert","advert-google-adsense");</script> </div> <script type="text/javascript">$render("advert-post-script-load");</script> </div> <div class="layout-block-b"> <div class="hyperpuff"> <div id="include-2" class="include-only special-event-promotion-best"> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://static.bbci.co.uk/naturelibrary/3.1.29/js/carousel-flickr.js"></script> <div class="carousel carousel-flickr box" id="flickr"> <h2>Your nature photos</h2> <div class="carousel-container"> <ul class="carousel-items" id="carousel-flickr"> <li class="nth-child-1"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/mattscott33/16476210815/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm9.staticflickr.com/8629/16476210815_c0f12cc8ae_s.jpg" width="80" height="80" alt="Ptarmigan"/> </a> </li> <li class="nth-child-2"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/farmer55/16289342879/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm9.staticflickr.com/8616/16289342879_1d63481dcb_s.jpg" width="80" height="80" alt="Kinder Downfall"/> </a> </li> <li class="nth-child-3"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/farmer55/16287750000/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm8.staticflickr.com/7356/16287750000_40dae12fda_s.jpg" width="80" height="80" alt="Evening Mists"/> </a> </li> <li class="nth-child-4"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/farmer55/16474940062/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm9.staticflickr.com/8628/16474940062_dbf11da7c9_s.jpg" width="80" height="80" alt="Mountain Hare In Its Winter Form " explored""/> </a> </li> <li class="nth-child-5"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/petersrockypics/15854391784/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm8.staticflickr.com/7391/15854391784_602439f1df_s.jpg" width="80" height="80" alt="Stonechat (European)"/> </a> </li> <li class="nth-child-6"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/hydrogen1/16475957545/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm8.staticflickr.com/7455/16475957545_c02c223e1b_s.jpg" width="80" height="80" alt="Night Roost"/> </a> </li> <li class="nth-child-7"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/xaotearoax/16479611472/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm8.staticflickr.com/7366/16479611472_9a71d55e77_s.jpg" width="80" height="80" alt="Eurasian Jay (Garrulus glandarius) carrying food"/> </a> </li> <li class="nth-child-8"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/22918294@N04/16293570540/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm8.staticflickr.com/7311/16293570540_299e99000e_s.jpg" width="80" height="80" alt="Mountain Hare, Scotland"/> </a> </li> <li class="nth-child-9"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/kamesargyll/16481301705/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm8.staticflickr.com/7318/16481301705_c19c6d900a_s.jpg" width="80" height="80" alt="At dusk"/> </a> </li> <li class="nth-child-10"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/124793781@N05/16295321739/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm9.staticflickr.com/8592/16295321739_9e9c0da8a4_s.jpg" width="80" height="80" alt="DSC_1952"/> </a> </li> <li class="nth-child-11"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/alexwitt/16272508097/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm8.staticflickr.com/7388/16272508097_a5d44f4c00_s.jpg" width="80" height="80" alt=""/> </a> </li> <li class="nth-child-12"> <a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/photos/max-thompson/16481107712/"> <img src="https://web.archive.org/web/20150211022154im_/http://farm8.staticflickr.com/7398/16481107712_68bf1cb87f_s.jpg" width="80" height="80" alt="European Otter"/> </a> </li> </ul> </div> <p>Share your photos of wildlife in summer.</p> <p><a href="https://web.archive.org/web/20150211022154/http://www.flickr.com/groups/bbcsummerwatch/">Visit the Summerwatch Flickr group </a></p> </div> </div> <script type="text/javascript">$render("include-2","include-2");</script> <div id="genre-promotion" class="container-features-and-analysis"> <h2 class="features-header"><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/">More from nature</a></h2> <ul>  <li class="first-child large-image"> <h3 class=" feature-header"> <a class="story" rel="published-1408437720090" href="/web/20150211022154/http://www.bbc.co.uk/nature/28838200"><img src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/media/images/77029000/jpg/_77029769_ostracod_bioluminescence_3.jpg" alt="Cardinal fish and ostracod"/>Fish filmed spitting 'fireworks'</a> </h3> <p>Film crew captures ostracods' spectacular defensive lightshow that makes predatory fish spit them out. <span id="dna-comment-count___CPS__28838200" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> </li>  <li class="medium-image"> <h3 class=" feature-header"> <a class="story" rel="published-1407946167270" href="/web/20150211022154/http://www.bbc.co.uk/nature/28705053"><img src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/media/images/76925000/jpg/_76925252_pescadorc_pirarucu.jpg" alt="Arapaima"/>'Locally extinct'</a> </h3> <p>A giant fish which used to dominate the Amazon river is now absent in many areas <span id="dna-comment-count___CPS__28705053" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> <hr/> </li> <li class="medium-image"> <h3 class=" feature-header"> <a class="story" rel="published-1408459358126" href="/web/20150211022154/http://www.bbc.co.uk/nature/28840368"><img src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/media/images/77038000/jpg/_77038239_pic_gal_dragonfly_7.jpg" alt="Dragonfly"/>Rapid reactions</a> </h3> <p>Dragonfly's super quick reactions recorded in slow motion by BBC film-makers <span id="dna-comment-count___CPS__28840368" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> <hr/> </li> <li class="medium-image"> <h3 class=" feature-header"> <a class="story" rel="published-1407855987741" href="/web/20150211022154/http://www.bbc.co.uk/nature/28525963"><img src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/media/images/76829000/jpg/_76829639_image1.jpg" alt="Wingless adult male of the midge Belgica antarctica"/>Extreme survivor</a> </h3> <p>Antarctic midge's small genome may be an adaptation to its extreme environment <span id="dna-comment-count___CPS__28525963" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> <hr/> </li> <li class="medium-image"> <h3 class=" feature-header"> <a class="story" rel="published-1407115814564" href="/web/20150211022154/http://www.bbc.co.uk/nature/28583377"><img src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/media/images/76678000/jpg/_76678045_myotissimus,marcotschapka,elrefugio,bolivia.jpg" alt="Myotis midastactus specimen (previously identified as Myotis simus)"/>Golden discovery</a> </h3> <p>A bat from Bolivia is described as a new species by scientists <span id="dna-comment-count___CPS__28583377" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> <hr/> </li>  <li class="no-image"> <h3 class=" feature-header"> <a class="story" rel="published-1406830328937" href="/web/20150211022154/http://www.bbc.co.uk/nature/28563682">Dinosaurs 'shrank' to become birds</a> </h3> <p>Huge meat-eating, land-living dinosaurs evolved into birds by constantly shrinking for over 50 million years, new research shows. <span id="dna-comment-count___CPS__28563682" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> </li> <li class="no-image"> <h3 class=" feature-header"> <a class="story" rel="published-1405418836972" href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/guides/zg4dwmn">Would we starve without bees?</a> </h3> <p>Honey bees are under threat, and as pollination significantly contributes to the food we eat, what would we do without them? <span id="dna-comment-count___CPS__28311358" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> </li> <li class="no-image"> <h3 class=" feature-header"> <a class="story" rel="published-1406596630012" href="/web/20150211022154/http://www.bbc.co.uk/nature/28492239">Eggshells may act like 'sunblock'</a> </h3> <p>Birds' eggs show adaptations in pigment concentration and thickness to allow the right amount of sun for embryos, scientists say. <span id="dna-comment-count___CPS__28492239" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> </li> <li class="no-image"> <h3 class=" feature-header"> <a class="story" rel="published-1404866316680" href="/web/20150211022154/http://www.bbc.co.uk/nature/28203680">Female shrimps are more aggressive</a> </h3> <p>Female snapping shrimps are more aggressive than males when defending their territories despite their smaller claw size, a study shows. <span id="dna-comment-count___CPS__28203680" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> </li> </ul> </div> <script type="text/javascript">$render("container-features-and-analysis","genre-promotion");</script> <div id="kl-promotion" class="container-features-and-analysis"> <h2 class="features-header"><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/iwonder">BBC iWonder</a></h2> <ul>  <li class="first-child large-image"> <h3 class=" feature-header"> <a class="story" rel="published-1405952065404" href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/guides/z2qx6sg"><img src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/media/images/76419000/jpg/_76419392_01435348_promo.jpg" alt="Honey bee close-up"/>Insect intelligence</a> </h3> <p>Are honey bees as smart as your sat nav? <span id="dna-comment-count___CPS__28400363" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> </li>  <li class="medium-image"> <h3 class=" feature-header"> <a class="story" rel="published-1403772805890" href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/guides/zyrx34j"><img src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/media/images/75848000/jpg/_75848148_cps_promo_c0135319_tyrannosaurus_rex_spl.jpg" alt="Tyrannosaurus rex skull (c) Mark Williamson / Science Photo Library"/>Dinosaur dynasty</a> </h3> <p>One group of dinosaurs survived and their descendants can be seen all around us today <span id="dna-comment-count___CPS__28034483" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> <hr/> </li> <li class="medium-image"> <h3 class=" feature-header"> <a class="story" rel="published-1402486057133" href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/guides/z82mmp3"><img src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/media/images/75449000/jpg/_75449824_01133883.jpg" alt="Brown rat cluse up"/>Rise of the rodent</a> </h3> <p>Reports of giant, 'super rats' are filling the headlines. But why are we being overrun by rats? <span id="dna-comment-count___CPS__27797793" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> <hr/> </li> <li class="medium-image"> <h3 class=" feature-header"> <a class="story" rel="published-1401960896741" href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/guides/zqrggk7"><img src="https://web.archive.org/web/20150211022154im_/http://news.bbcimg.co.uk/media/images/75347000/jpg/_75347222_1370_cuckoo_nobfresh17.jpg" alt="Cuckoo portrait"/>Holiday hotspot</a> </h3> <p>What makes the UK such an attractive destination for visiting wildlife? <span id="dna-comment-count___CPS__27714381" class="gvl3-icon gvl3-icon-comment comment-count"></span></p> <hr/> </li> </ul> </div> <script type="text/javascript">$render("container-features-and-analysis","kl-promotion");</script> <div id="include-1" class="include-only special-event-promotion-best"> <script type="text/javascript" src="https://web.archive.org/web/20150211022154js_/http://static.bbci.co.uk/naturelibrary/3.1.29/js/find.js"></script> <div id="find"> <h2><label for="filter-text">Find wildlife</label></h2> <div class="input-wrapper"> <input id="filter-text" type="text" name="filter" value=""/> </div> <noscript> <p>(To use the "Find" box, you need to have <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/webwise/askbruce/articles/browse/java_1.shtml">JavaScript</a> turned on.) </p> </noscript> </div> <script type="text/javascript">//<![CDATA[ gloader.load(["glow", "1", "glow.dom", "glow.events", "glow.widgets.AutoSuggest"], { async: false, onLoad: function(glow) { window.glow = glow; glow.ready(function() { var dataUrl = '/nature/tools/search', select = { 'panel': '#filter-text' }, opts = { 'initialText' : 'Search for your favourite wildlife', 'id' : 'find-results', 'maxItems' : 8, 'indicateMore' : true, 'debug' : true }, theSearch = kFind(dataUrl, select, opts); theSearch.init(); }); }}); //]]></script> </div> <script type="text/javascript">$render("include-1","include-1");</script> <div class="best-quote-box"> <blockquote> <p> <a href="https://web.archive.org/web/20150211022154/https://twitter.com/NMalliotakis/status/536730987083079682"> <span class="open-quote">“</span>There have been 75 solar eclipses and 167 major volcanic eruptions in my lifetime<span class="close-quote">”</span> </a> </p> </blockquote> <span class="quote_credit">Nicole Malliotakis on Twitter comments on the events that have happened since she was born by using our personalised Your Life on Earth interactive infographic.</span> </div> <div id="include-3" class="include-only special-event-promotion-best"> <div id="follow"> <ul> <li class="twitter"><a href="https://web.archive.org/web/20150211022154/http://twitter.com/BBCnature">Twitter</a></li> <li class="facebook"><a href="https://web.archive.org/web/20150211022154/http://www.facebook.com/pages/BBC-Nature/110556269000071">Facebook</a></li> </ul> </div> </div> <script type="text/javascript">$render("include-3","include-3");</script> <div id="include-4" class="include-only special-event-promotion-best"> <div id="ttd-widget"> <div id="ttd-widget-header"> <h2><a href="/web/20150211022154/http://www.bbc.co.uk/thingstodo/category/nature">Get Inspired</a></h2> <p>ACTIVITY FINDER</p> </div> <div id="ttd-widget-content"> <ul> <li> <a href="/web/20150211022154/http://www.bbc.co.uk/thingstodo/activity/monthly-guided-walk-at-lackford-lakes/occurrence/115766" title="Monthly Guided Walk at Lackford Lakes"> <img src="https://web.archive.org/web/20150211022154im_/http://ichef.bbci.co.uk/thingstodo/image/128x72/2014/12/15/monthly-guided-walk-at-lackford-lakes_995d8605.jpg" width="128" height="72" alt="Kingfisher by Geoff Harries"/> </a> <p class="date-block"><span class="date"><span class="dayText">WED </span><span class="day">11 </span><span class="month">FEB</span></span></p> <h3><a href="/web/20150211022154/http://www.bbc.co.uk/thingstodo/activity/monthly-guided-walk-at-lackford-lakes/occurrence/115766">Monthly Guided Walk at Lackford Lakes</a></h3> <p class="partner location">BBC</p> </li> <li> <a href="/web/20150211022154/http://www.bbc.co.uk/thingstodo/activity/bradley-stoke-green-gym-03/occurrence/117186" title="Bradley Stoke Green Gym"> <img src="https://web.archive.org/web/20150211022154im_/http://ichef.bbci.co.uk/thingstodo/image/128x72/2015/01/08/bradley-stoke-green-gym-03_61f5e38f.jpg" width="128" height="72" alt="Stream Clearing"/> </a> <p class="date-block"><span class="date"><span class="dayText">THU </span><span class="day">12 </span><span class="month">FEB</span></span></p> <h3><a href="/web/20150211022154/http://www.bbc.co.uk/thingstodo/activity/bradley-stoke-green-gym-03/occurrence/117186">Bradley Stoke Green Gym</a></h3> <p class="partner location">BBC</p> </li> <li> <a href="/web/20150211022154/http://www.bbc.co.uk/thingstodo/activity/strandline-scavenger-hunt/occurrence/115896" title="Strandline Scavenger Hunt"> <img src="https://web.archive.org/web/20150211022154im_/http://ichef.bbci.co.uk/thingstodo/image/128x72/2015/01/06/strandline-scavenger-hunt_8a01666f.jpg" width="128" height="72" alt="Anderby_Creek strandline credit Tanya Perdikou"/> </a> <p class="date-block"><span class="date"><span class="dayText">SAT </span><span class="day">14 </span><span class="month">FEB</span></span></p> <h3><a href="/web/20150211022154/http://www.bbc.co.uk/thingstodo/activity/strandline-scavenger-hunt/occurrence/115896">Strandline Scavenger Hunt</a></h3> <p class="partner location">BBC</p> </li> </ul> <p class="more"><a href="/web/20150211022154/http://www.bbc.co.uk/thingstodo/category/nature" title="Nature ">More Nature Activities ></a></p> </div> <div id="ttd-widget-footer"> <form action="/web/20150211022154/http://www.bbc.co.uk/thingstodo/category/nature?max[0]=3&sort=date&order=asc&groupby=activity_id&from=2015-02-11T03:01:35&category_id[0]=4" method="get"> <div><input type="hidden" name="max[]" value="3"/> <input type="hidden" name="sort" value="date"/> <input type="hidden" name="order" value="asc"/> <input type="hidden" name="groupby" value="activity_id"/> <input type="hidden" name="from" value="2015-02-11T03:01:35"/> <input type="hidden" name="category_id[]" value="4"/> <label for="ttd-widget-search">Find Nature activities near you</label> <input id="ttd-widget-search" name="search" type="text" value="Town, city, postcode" onfocus="this.value=''"/> <input id="ttd-widget-search-btn" type="submit" value="Search"/> </div> </form> </div> </div>  </div> <script type="text/javascript">$render("include-4","include-4");</script> </div>  <div class="bbccom_advert_placeholder"> <script type="text/javascript">$render("advert","advert-partner-button");</script> </div> <script type="text/javascript">$render("advert-post-script-load");</script>  <div class="bbccom_advert_placeholder"> <script type="text/javascript">$render("advert","advert-native-side");</script> </div> <script type="text/javascript">$render("advert-post-script-load");</script> <div class="bbccom_advert_placeholder"> <script type="text/javascript">$render("advert","advert-mpu-bottom");</script> </div> <script type="text/javascript">$render("advert-post-script-load");</script> </div>  </div>  </div>  </div> </div>  <div id="blq-foot" xml:lang="en-GB" class="blq-rst blq-clearfix blq-foot-transparent blq-foot-text-dark"> <div id="blq-footlinks"> <h2 class="blq-hide">BBC links</h2> <ul> <li class="blq-footlinks-row"> <ul class="blq-footlinks-row-list"> <li><a href="https://web.archive.org/web/20150211022154/http://m.bbc.co.uk/" id="blq-footer-mobile">Mobile site</a></li><li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/terms/">Terms of Use</a></li><li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/aboutthebbc/">About the BBC</a></li> </ul> </li> <li class="blq-footlinks-row"> <ul class="blq-footlinks-row-list"> <li><a href="https://web.archive.org/web/20150211022154/http://advertising.bbcworldwide.com/">Advertise With Us</a></li><li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/privacy/">Privacy</a></li><li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/accessibility/">Accessibility Help</a></li> </ul> </li> <li class="blq-footlinks-row"> <ul class="blq-footlinks-row-list"> <li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/privacy/cookies/international/">Ad Choices</a></li><li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/privacy/cookies/about">Cookies</a></li><li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/contact/">Contact the BBC</a></li> </ul> </li> <li class="blq-footlinks-row"> <ul class="blq-footlinks-row-list"> <li><a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/guidance/">Parental Guidance</a></li> </ul> </li> </ul> <script type="text/javascript">/*<![CDATA[*/ (function() { var mLink = document.getElementById('blq-footer-mobile'), stick = function() { var d = new Date (); d.setYear(d.getFullYear() + 1); d = d.toUTCString(); window.bbccookies.set('ckps_d=m;domain=.bbc.co.uk;path=/;expires=' + d ); window.bbccookies.set('ckps_d=m;domain=.bbc.com;path=/;expires=' + d ); }; if (mLink) { if (mLink.addEventListener) { mLink.addEventListener('click', stick, false); } else if (mLink.attachEvent) { mLink.attachEvent('onclick', stick); } } })(); /*]]>*/</script> </div> <div id="blq-foot-blocks" class="blq-footer-image-dark"><img src="https://web.archive.org/web/20150211022154im_/http://static.bbci.co.uk/frameworks/barlesque/2.83.4/desktop/3.5/img/blocks/dark.png" width="84" height="24" alt="BBC"/></div> <p id="blq-disclaim"><span id="blq-copy">Copyright © 2015 BBC.</span> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/help/web/links/">The BBC is not responsible for the content of external sites. Read more.</a></p> <div id="blq-obit"><p><strong>This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.</strong></p></div> </div> </div>   <div id="bbccomWebBug" class="bbccomWebBug"></div>  <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('analytics')) { if (bbcdotcom && bbcdotcom.analytics) { bbcdotcom.analytics.init(); bbcdotcom.analytics.page(); } } /*]]>*/ </script>   <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('analytics')) { document.write(unescape("%3Cscript src='" + (document.location.protocol == "https:" ? "https://web.archive.org/web/20150211022154/https://sb" : "http://b") + ".scorecardresearch.com/beacon.js' %3E%3C/script%3E")); } /*]]>*/ </script> <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('analytics')) { COMSCORE.beacon({ c1:2, c2:"6035051", c3:"", c4:"www.bbc.co.uk/nature/23809528", c5:"", c6:"", c15:"" }); } /*]]>*/ </script>   <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('nielsen-au')) {  document.write(unescape('%3Cscript type="text/javascript" src="' + ('https:' == document.location.protocol ? 'https:' : 'http:') + '//web.archive.org/web/20150211022154/http://secure-au.imrworldwide.com/v60.js"%3E%3C/script%3E')); } /*]]>*/ </script> <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('nielsen-au')) {  nol_t({cid:"au-bbc",content:"0",server:"secure-au"}).record().post();  } /*]]>*/ </script>   <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('nielsen-nz')) {  document.write(unescape('%3Cscript type="text/javascript" src="' + ('https:' == document.location.protocol ? 'https:' : 'http:') + '//web.archive.org/web/20150211022154/http://secure-nz.imrworldwide.com/v60.js"%3E%3C/script%3E')); } /*]]>*/ </script> <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('nielsen-nz')) { nol_t({cid:"nz-bbc",content:"0",server:"secure-nz"}).record().post(); } /*]]>*/ </script>   <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('nielsen-us')) {  (function () { var d = new Image(1, 1); d.onerror = d.onload = function () { d.onerror = d.onload = null; }; d.src = [('https:' == document.location.protocol ? 'https:' : 'http:') + "//web.archive.org/web/20150211022154/http://secure-us.imrworldwide.com/cgi-bin/m?ci=us-804789h&cg=0&cc=1&si=", escape(window.location.href), "&rp=", escape(document.referrer), "&ts=compact&rnd=", (new Date()).getTime()].join(''); })(); } /*]]>*/ </script>   <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('analytics')) { (function() { var em = document.createElement('script'); em.type = 'text/javascript'; em.async = true; em.src = ('https:' == document.location.protocol ? 'https://web.archive.org/web/20150211022154/https://me-ssl' : 'https://web.archive.org/web/20150211022154/http://me-cdn') + '.effectivemeasure.net/em.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(em, s); })(); } /*]]>*/ </script>   <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('agof')) { var ivwcode="default"; if(typeof BBC != 'undefined' && typeof BBC.adverts != 'undefined'){ ivwcode = BBC.adverts.getSectionPath(); } var IVW="https://web.archive.org/web/20150211022154/http://bbc.ivwbox.de/cgi-bin/ivw/CP/"+ivwcode+";"; document.write("<img src=\""+IVW+"?r="+escape(document.referrer)+"&d="+(Math.random()*100000)+"\" width=\"1\" height=\"1\" alt=\"szmtag\" />"); } /*]]>*/ </script> <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('agof')) { var szmvars="bbc//CP/"+ivwcode; document.write(unescape('%3Cscript src="https://web.archive.org/web/20150211022154/http://bbc.ivwbox.de/2004/01/survey.js" type="text/javascript"%3E%3C/script%3E')); } /*]]>*/ </script>   <div class="OUTBRAIN" data-src="https://web.archive.org/web/20150211022154oe_/http://www.bbc.co.uk/nature/23809528" data-widget-id="TR_1" data-ob-template="BBC.com/News"></div> <script type="text/javascript"> /*<![CDATA[*/ if (BBC.adverts.isActive('ads') && BBC.adverts.isActive('analytics')) { document.write(unescape('%3Cscript src="https://web.archive.org/web/20150211022154/http://widgets.outbrain.com/outbrain.js" type="text/javascript"%3E%3C/script%3E')); } /*]]>*/ </script>  </div> </div> <script type="text/javascript"> if (typeof require !== 'undefined') { require(['istats-1'], function(istats){ istats.track('external', { region: document.getElementById('blq-main') }); istats.track('download', { region: document.getElementById('blq-main') }); }); } </script> <script type="text/html" id="blq-panel-template-promo"><![CDATA[ <div id="blq-panel-promo" class="blq-masthead-container"></div> ]]></script> <script type="text/html" id="blq-panel-template-more"><![CDATA[ <div id="blq-panel-more" class="blq-masthead-container blq-clearfix" xml:lang="en-GB" dir="ltr"> <div class="blq-panel-container panel-paneltype-more"> <div class="panel-header"> <h2> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/a-z/"> More… </a> </h2> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/a-z/" class="panel-header-links panel-header-link">Full A-Z<span class="blq-hide"> of BBC sites</span></a> </div> <div class="panel-component panel-links"> <ul> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/cbbc/" >CBBC</a> </li> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/cbeebies/" >CBeebies</a> </li> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.com/capital" >Capital</a> </li> </ul> <ul> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/food/" >Food</a> </li> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/history/" >History</a> </li> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/comedy/" >Comedy</a> </li> </ul> <ul> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/music/" >Music</a> </li> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/science/" >Science</a> </li> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/learning/" >Learning</a> </li> </ul> <ul> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/local/" >Local</a> </li> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.com/travel/" >Travel</a> </li> <li> <a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/nature/" >Nature</a> </li> </ul> </div> </div> ]]></script>  <script type="text/javascript"> bbc.fmtj.common.removeNoScript({}); bbc.fmtj.common.tabs.createTabs({}); </script>  <script type="text/javascript"> glow.dom.get("#header").append( '<a href="https://web.archive.org/web/20150211022154/http://www.bbc.co.uk/blogs/internet/posts/Knowledge-Learning-Product-Curriculum-Refresh" id="kl-beta">Knowledge & Learning Beta</a>' ); </script>   </body> </html>