CINXE.COM

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  <html> <head><script type="text/javascript" src="https://web-static.archive.org/_static/js/bundle-playback.js?v=7YQSqjSh" charset="utf-8"></script> <script type="text/javascript" src="https://web-static.archive.org/_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="https://web-static.archive.org/_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/sn/prehistoric_life/dinosaurs/","20090213075335","https://web.archive.org/","web","https://web-static.archive.org/_static/", "1234511615"); </script> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/banner-styles.css?v=p7PEIJWi" /> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/iconochive.css?v=3PDvdIFv" />  <title>BBC - Science & Nature - Dinosaurs</title> <meta name="DESCRIPTION" content="BBC Science guide to the age of the dinosaurs"> <meta name="KEYWORDS" content="dinosaurs, palaentology, t. rex, t-rex, diplodocus, triceratops">   <script src="/web/20090213075335js_/http://www.bbc.co.uk/cs/jst/mod/1/jst_core.v1.3.js" type="text/javascript"></script> <script src="/web/20090213075335js_/http://www.bbc.co.uk/cs/jst/mod/1/jst_img.v1.js" type="text/javascript"></script> <script src="/web/20090213075335js_/http://www.bbc.co.uk/cs/jst/mod/1/jst_win.v1.js" type="text/javascript"></script> <script src="/web/20090213075335js_/http://www.bbc.co.uk/cs/jst/mod/1/jst_plugins.v1.2.js" type="text/javascript"></script> <script src="/web/20090213075335js_/http://www.bbc.co.uk/webwise/support.js" type="text/javascript"></script>   <link rel="stylesheet" type="text/css" href="/web/20090213075335cs_/http://www.bbc.co.uk/sn/css/scinat_nav_combined.css"/>  <style type="text/css"> .navcontainer a:hover, .navcontainer td:hover, #lhncontainer .scinatlocaldinosaurs a, #lhnlevel3container .scinatlocaldinosaurs a, #lhnlevel4container .scinatlocaldinosaurs a, a.scinatglobalprehistoriclife { background-color: F3E8E1 ; color: 672803; } </style>  <link rel="stylesheet" href="/web/20090213075335cs_/http://www.bbc.co.uk/sn/prehistoric_life/css/colours.css" type="text/css"/> <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"/> <style type="text/css"> .bbcpageTopleftlink,a.bbcpageTopleftlink,a:link.bbcpageTopleftlink,a:hover.bbcpageTopleftlink,a:visited.bbcpageTopleftlink {background:#672803;color:#ffffff;text-decoration:underline;} .bbcpageToplefttd {background:#672803;color:#ffffff;} </style>  <style type="text/css"> @import '/web/20090213075335cs_/http://www.bbc.co.uk/includes/bbcpage/v3-2/toolbar.css'; </style>   <script language="JavaScript" type="text/javascript">  </script> <script language="JavaScript" type="text/javascript"> var myWin = new bbcjs.win.Window(""); myWin.name = "media"; myWin.features.scrollbars = "no"; myWin.features.toolbar = "no"; myWin.features.resizable = "no"; bbcjs.images.rolls["back"] = "/sn/prehistoric_life/furniture/back_button_on.jpg"; bbcjs.images.rolls["next"] = "/sn/prehistoric_life/furniture/next_button_on.jpg"; bbcjs.images.rollPrep(); </script> </head> <body> <a name="top" id="top"></a><ul class="bbcpageHide"><li><a href="#startcontent" accesskey="2">Skip to main content</a></li><li><a href="/web/20090213075335/http://www.bbc.co.uk/cgi-bin/education/betsie/parser.pl">Text only version of this page</a></li><li><a href="/web/20090213075335/http://www.bbc.co.uk/accessibility/accesskeys/keys.shtml" accesskey="0">Access keys help</a></li></ul><div id="toolbarContainer"><form method="get" action="https://web.archive.org/web/20090213075335/http://www.bbc.co.uk/cgi-bin/search/results.pl" accept-charset="utf-8"><table id="bbcpageToolbarTable" width="100%" cellpadding="0" cellspacing="0" border="0" lang="en"><tr valign="middle"><td width="200" id="bbcpageBlocks"><font size="2"><a href="https://web.archive.org/web/20090213075335/http://www.bbc.co.uk/go/toolbar/blocks/-/home/d/" accesskey="1"><img src="/web/20090213075335im_/http://www.bbc.co.uk/images/bbcpage/v3-0/bbc.gif" width="77" height="22" alt="BBC" border="0" hspace="2" vspace="0"/> Home</a></font></td><td width="295" align="right"><input type="text" id="bbcpageSearch" name="q" style="font-family:arial,helvetica,sans-serif;" title="BBC Search" accesskey="4"/></td><td width="105"><input type="submit" name="Search" value="Search" id="bbcpageSearchButton"/><input type="hidden" name="uri" value="/sn/prehistoric_life/dinosaurs/"/></td><td width="170" align="right" class="bbcpageblue"><font size="2" id="bbcpageExplore"><a href="/web/20090213075335/http://www.bbc.co.uk/go/toolbar/wlm/-/a-z/">Explore the BBC</a></font></td></tr></table></form></div><table cellspacing="0" cellpadding="0" border="0" width="100%" id="bbcpageTableTop"><tr><td class="bbcpageToplefttd" width="125"><table cellspacing="0" cellpadding="0" border="0"><tr><td width="8"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="8" height="1" alt=""/></td><td width="117"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="117" height="1" alt=""/><br clear="all"/><font face="arial, helvetica, sans-serif" size="1" class="bbcpageToplefttd">13 February 2009<br/><a class="bbcpageTopleftlink" style="text-decoration:underline;" href="/web/20090213075335/http://www.bbc.co.uk/accessibility/">Accessibility help</a><br/><a class="bbcpageTopleftlink" style="text-decoration:underline;" href="/web/20090213075335/http://www.bbc.co.uk/cgi-bin/education/betsie/parser.pl">Text only</a></font></td></tr></table></td><td width="100%" valign="top"> <table cellpadding="0" cellspacing="0" border="0" width="100%"> <tr> <td class="bannerright"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/prehistoriclife.jpg" width="635" height="50" alt="" border="0"></td> <td class="bannerright" align="right"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="1" height="1"/></td> </tr> <tr> <td class="toptabs" valign="middle">  <table border="0" cellpadding="0" cellspacing="0" width="635"> <tr> <td class="navcontainer"> <div class="globalcurve"><a href="/web/20090213075335/http://www.bbc.co.uk/nature/animals/" class="globalcurve scinatglobalanimals">Animals</a></div> </td> <td class="navcontainer"> <div class="navcontainer"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/" class="scinatglobalprehistoriclife">Prehistoric Life</a></div> </td> <td class="navcontainer"> <div class="navcontainer"><a href="/web/20090213075335/http://www.bbc.co.uk/science/humanbody/" class="scinatglobalhumanbodyandmind">Human Body & Mind</a></div> </td> <td class="navcontainer"> <div class="navcontainer"><a href="/web/20090213075335/http://www.bbc.co.uk/science/space/" class="scinatglobalspace">Space</a></div> </td> <td class="navcontainer"> <div class="navcontainer"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/tvradio/" class="scinatglobaltvradio">TV & Radio Follow-up</a></div> </td> </tr> </table>  </td> </tr> </table>  </td></tr></table><table style="margin:0px;" cellspacing="0" cellpadding="0" border="0" align="left" id="bbcpageTableNav" width="125"><tr><td class="bbcpageCrumb" width="8"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="8" height="1" alt=""/></td><td class="bbcpageCrumb" width="115"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="115" height="1" alt=""/><br clear="all"/><font face="arial, helvetica,sans-serif" size="2"><a class="bbcpageCrumb" href="/web/20090213075335/http://www.bbc.co.uk/" lang="en">BBC Homepage</a><br/><br/><div class="scinatlocalcrumb"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/">Science & Nature Homepage</a></div> </font></td><td width="2" class="bbcpageCrumb"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="2" height="1" alt=""/></td></tr><tr><td class="bbcpageLocal" colspan="3"> <p class="leftnavheader">In <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/">Prehistoric Life</a>:</p> <div id="lhncontainer"> <span class="scinatlocaldinosaurs"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/">Age of the dinosaurs</a></span> <span class="scinatlocalhuman"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/human/">Human beginnings</a></span>  <span class="scinatlocaltv_radio"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/tv_radio/">TV & radio series</a></span> <span class="scinatlocalgames"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/games/">Games & quizzes</a></span>  <span class="scinatlocalgalleries"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/galleries/">Picture galleries</a></span> <span class="scinatlocalnews"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/news/">Latest news</a></span>  </div>  </td></tr><tr><td class="bbcpageLocal" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="1" height="5" alt=""/></td></tr><tr><td class="bbcpageServices"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="1" height="1" alt=""/></td><td class="bbcpageServices"><hr width="50" align="left"/><font face="arial, helvetica, sans-serif" size="2"><a class="bbcpageServices" href="/web/20090213075335/http://www.bbc.co.uk/feedback/">Contact Us</a><br/><br/><font size="1">Like this page?<br/><a class="bbcpageServices" onclick="popmailwin('/cgi-bin/navigation/mailto.pl?GO=1&REF=http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/index.shtml','Mailer')" href="/web/20090213075335/http://www.bbc.co.uk/cgi-bin/navigation/mailto.pl?GO=1&REF=http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/index.shtml" target="Mailer">Send it to a friend!</a></font><br/> </font></td><td class="bbcpageServices"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="1" height="1" alt=""/></td></tr></table><table width="635" cellspacing="0" cellpadding="0" border="0" id="bbcpageTableContent" style="margin:0px;" style="float:left;"><tr><td><a name="startcontent" id="startcontent"></a>  <table cellpadding="0" cellspacing="0" border="0" width="635" class="maincont"><tr><td class="gutter"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="4" height="66"/></td><td colspan="3" class="topfrill"><span id="scinatcrumb">You are here: <a href="https://web.archive.org/web/20090213075335/http://www.bbc.co.uk/">BBC</a> > <a href="/web/20090213075335/http://www.bbc.co.uk/sn">Science & Nature</a> > <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/">Prehistoric Life</a> > Age of the Dinosaurs</span><h1>Age of the dinosaurs</h1></td></tr><tr><td class="gutter" rowspan="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="4" height="1"/></td><td><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="1" height="1"/></td><td class="gutter" rowspan="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="4" height="1"/></td><td><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="1" height="1"/></td></tr><tr><td width="461" valign="top"><table cellpadding="0" cellspacing="0" border="0" width="461"><tr><td colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="1" height="7"/></td></tr><tr><td><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="4" height="1"/></td><td>  <table cellpadding="0" cellspacing="0" border="0" width="450"><tr><td colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/shadowtop.gif" alt="" width="450" height="8"/></td></tr><tr><td width="5" class="shadowleft"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="5" height="1"/></td><td width="440" class="summary"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/images/index_big.jpg" width="430" height="146" alt="T. Rex - from the series Walking with Dinosaurs" border="0"></td><td width="5" class="shadowright"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="5" height="1"/></td></tr><tr><td colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/shadowbott.gif" alt="" width="450" height="9"/></td></tr> <tr> <td colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="1" height="10"/></td> </tr> <tr> <td colspan="3" class="highlight"><div class="contents">Dinosaur contents</div></td> </tr> </table> <p><strong class="subindex">The dinosaurs were among the most successful animals ever to live on the Earth. Their reign lasted over 100 million years - and if birds evolved from the dinosaurs, then their descendents are still alive today.</strong></p>  <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="140" valign="top" rowspan="2"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/chronology/index.shtml"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/promo/prehistoric_life/images/chronology.jpg" width="140" height="85" border="0" alt="Rise and fall of the dinosaurs"/></a></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> <td valign="top"><p class="smallpromoheader"> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/chronology/index.shtml">Rise and fall of the dinosaurs</a> </p><p class="smallpromo"> 100 million years separated <em>T. rex</em> from the earliest dinosaurs. Find out how they evolved as the world around them changed.</p></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> </tr> <tr> <td class="promoborders" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="1" height="1" alt=""/></td> </tr> </table>  <br/>  <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="140" valign="top" rowspan="2"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/seamonsters/"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/promo/prehistoric_life/images/seamonsters_factfiles2.jpg" width="140" height="85" border="0" alt="Sea monster fact files"/></a></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> <td valign="top"><p class="smallpromoheader"> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/seamonsters/">Sea monster facts</a> </p><p class="smallpromo"> They're huge, hungry and swimming your way. Meet creatures from the early oceans.  <font size="1"> <br/> <a href="https://web.archive.org/web/20090213075335/http://news.bbc.co.uk/1/hi/sci/tech/5403570.stm">BBC News: New 'monster' sea fossils</a>    </font></p></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> </tr> <tr> <td class="promoborders" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="1" height="1" alt=""/></td> </tr> </table>  <br/>  <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="140" valign="top" rowspan="2"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/tv_radio/killer_dinosaurs/"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/promo/prehistoric_life/images/killer_dinosaurs.jpg" width="140" height="85" border="0" alt="The Truth about Killer Dinosaurs"/></a></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> <td valign="top"><p class="smallpromoheader"> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/tv_radio/killer_dinosaurs/">The Truth About Killer Dinosaurs - 2005</a> </p><p class="smallpromo"> <em>T. rex</em> vs <em>Triceratops</em>. Can science predict who would win? Bill Oddie uses the latest research to investigate the ultimate clash of the titans.</p></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> </tr> <tr> <td class="promoborders" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="1" height="1" alt=""/></td> </tr> </table>  <br/>  <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="140" valign="top" rowspan="2"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/games/baryonyx_mystery/"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/promo/prehistoric_life/images/baryonyx_mystery.jpg" width="140" height="85" border="0" alt="The Baryonyx mystery"/></a></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> <td valign="top"><p class="smallpromoheader"> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/games/baryonyx_mystery/">The Baryonyx mystery</a> </p><p class="smallpromo"> Have you got the palaeontology skills needed to uncover the truth about Baryonyx? Weigh up the video evidence to find out. </p></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> </tr> <tr> <td class="promoborders" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="1" height="1" alt=""/></td> </tr> </table>  <br/>  <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="140" valign="top" rowspan="2"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/burying_bodies/"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/promo/prehistoric_life/images/burying_bodies.jpg" width="140" height="85" border="0" alt="Burying bodies"/></a></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> <td valign="top"><p class="smallpromoheader"> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/burying_bodies/">Burying bodies</a> </p><p class="smallpromo"> Only a tiny fraction of animals ever become fossilised. What conditions do you need to get a perfectly preserved specimen?</p></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> </tr> <tr> <td class="promoborders" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="1" height="1" alt=""/></td> </tr> </table>  <br/>  <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="140" valign="top" rowspan="2"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/making_fossils/"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/promo/prehistoric_life/images/making_fossils.jpg" width="140" height="85" border="0" alt="Making fossils"/></a></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> <td valign="top"><p class="smallpromoheader"> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/dinosaurs/making_fossils/">Making fossils</a> </p><p class="smallpromo"> How does a flesh and blood creature turn into a fossil? <br/> <font size="1"><a href="https://web.archive.org/web/20090213075335/http://news.bbc.co.uk/1/hi/sci/tech/6750005.stm">BBC News: Huge bird dino unearthed in China</a></font> </p></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> </tr> <tr> <td class="promoborders" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="1" height="1" alt=""/></td> </tr> </table>  <br/>  <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="140" valign="top" rowspan="2"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/games/seamonsters/"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/promo/prehistoric_life/images/seamonsters_game.gif" width="140" height="85" border="0" alt="Seamonsters game"/></a></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> <td valign="top"><p class="smallpromoheader"> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/games/seamonsters/">Sea Monsters adventure</a> </p><p class="smallpromo"> Can you survive the seven deadliest seas of all time in this game? Take the plunge! <font size="1"> <br/> <a href="https://web.archive.org/web/20090213075335/http://news.bbc.co.uk/1/hi/sci/tech/4797679.stm">BBC News: Bizarre whale fossil found</a> </font></p></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> </tr> <tr> <td class="promoborders" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="1" height="1" alt=""/></td> </tr> </table>  <br/>   <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="140" valign="top" rowspan="2"><a href="/web/20090213075335/http://www.bbc.co.uk/sn/tvradio/programmes/horizon/dino_prog_summary.shtml"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/promo/prehistoric_life/images/horizon_whatkilled.jpg" width="140" height="85" border="0" alt="What really killed the dinosaurs?"/></a></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> <td valign="top"><p class="smallpromoheader"> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/tvradio/programmes/horizon/dino_prog_summary.shtml">On <i>Horizon</i>: What really killed the dinosaurs?</a> </p><p class="smallpromo"> A small group of scientists believes the asteroid 'impact' theory is wrong. This has generated one of the most bitter scientific rows of recent times. </p></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> </tr> <tr> <td class="promoborders" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="1" height="1" alt=""/></td> </tr> </table>  <br/>  <table border="0" cellspacing="0" cellpadding="0"> <tr> <td width="140" valign="top" rowspan="2"><a href="/web/20090213075335/http://www.bbc.co.uk/science/horizon/2004/trex.shtml"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/promo/prehistoric_life/images/horizon_trex.jpg" width="140" height="85" border="0" alt="T. rex - warrior or wimp?"/></a></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> <td valign="top"><p class="smallpromoheader"> <a href="/web/20090213075335/http://www.bbc.co.uk/science/horizon/2004/trex.shtml">On <i>Horizon</i>: T. rex - warrior or wimp?</a> </p><p class="smallpromo"> Was <em>Tyrannosaurus rex</em> really the ferocious predator that movie-makers would have us believe? </p></td> <td width="5"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="5" height="84" alt=""/></td> </tr> <tr> <td class="promoborders" colspan="3"><img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="1" height="1" alt=""/></td> </tr> </table>  <br/>  </td><td><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="4" height="1"/></td></tr></table></td><td rowspan="4" width="166" valign="top" class="rhn"><table width="166" cellpadding="0" cellspacing="0" border="0" class="rhntop"><tr><td align="center">  <div class="rhnblock"> <div class="relatedlinksindex" align="left"> <p class="rhntitleindex"><strong>Related links</strong></p> </div> </div>  <div class="rhnblock"> <div class="relatedlinks2" align="left"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="100%" height="1"/><br/> <p class="rhntitle"><strong>Elsewhere on<br/>Science & Nature</strong></p>  <div class="bullet"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/arrow_bullet.gif" alt="" border="0" width="3" height="5" align="left" hspace="0"/> <div> <a href="/web/20090213075335/http://www.bbc.co.uk/science/horizon/2004/trex.shtml" class="related"><em>T. rex</em> - Warrior or Wimp?</a> </div> </div> <div class="rhndesc">A recent episode of <i>Horizon</i></div>  <div class="bullet"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/arrow_bullet.gif" alt="" border="0" width="3" height="5" align="left" hspace="0"/> <div> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/tvradio/programmes/horizon/dino_prog_summary.shtml" class="related">What really killed the dinosaurs?</a> </div> </div> <div class="rhndesc">A recent episode of <i>Horizon</i></div>  </div> </div>  <div class="rhnblock"> <div class="relatedlinks3" align="left"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="100%" height="1"/><br/> <p class="rhntitle"><strong>Elsewhere on bbc.co.uk</strong></p>  <div class="bullet"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/arrow_bullet.gif" alt="" border="0" width="3" height="5" align="left" hspace="0"/> <div> <a href="https://web.archive.org/web/20090213075335/http://www.bbc.co.uk/dna/h2g2/a590294" class="related">Were the dinosaurs hot or cold blooded?</a> </div> </div> <div class="rhndesc">H2G2 - Written by the audience</div>  <div class="bullet"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/arrow_bullet.gif" alt="" border="0" width="3" height="5" align="left" hspace="0"/> <div> <a href="https://web.archive.org/web/20090213075335/http://www.bbc.co.uk/dna/h2g2/A706862" class="related">The KT extinction - what killed the dinosaurs? </a> </div> </div> <div class="rhndesc">H2G2 - Written by the audience </div>  <div class="bullet"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/arrow_bullet.gif" alt="" border="0" width="3" height="5" align="left" hspace="0"/> <div> <a href="/web/20090213075335/http://www.bbc.co.uk/cbbcnews/hi/find_out/guides/animals/dinosaurs/newsid_1610000/1610405.stm" class="related">CBBC Dinosaurs </a> </div> </div> <div class="rhndesc">A guide to dinosaurs for children </div>  </div> </div>  <div class="rhnblock"> <div class="relatedlinks4" align="left"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="100%" height="1"/><br/> <p class="rhntitle"><strong>Elsewhere on <br>the web</strong></p>  <div class="bullet"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/arrow_bullet.gif" alt="" border="0" width="3" height="5" align="left" hspace="0"/> <div> <a href="https://web.archive.org/web/20090213075335/http://dinobase.gly.bris.ac.uk/" class="related">Dinobase</a> </div> </div> <div class="rhndesc">The University of Bristol's up-to-date list of known dinosaurs</div>  <div class="bullet"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/arrow_bullet.gif" alt="" border="0" width="3" height="5" align="left" hspace="0"/> <div> <a href="https://web.archive.org/web/20090213075335/http://www.ucmp.berkeley.edu/diapsids/dinosaur.html" class="related">The Dinosauria</a> </div> </div> <div class="rhndesc">Guide to dinosaurs from the University of California, Berkley </div>  <div class="disclaimer">The BBC is not responsible for the content of external websites</div> </div> </div>  <img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="1" height="10"/></td></tr><tr><td><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/rhn_frill.gif" alt="" width="166" height="24"/></td></tr></table></td></tr><tr><td><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="1" height="1"/></td></tr><tr><td valign="bottom"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" alt="" width="1" height="1"/></td></tr><tr><td valign="top" class="frillback"><img src="/web/20090213075335im_/http://www.bbc.co.uk/sn/prehistoric_life/furniture/frill_bott.gif" alt="" width="461" height="47"/></td></tr></table>   <br clear="all"/> <table cellpadding="0" cellspacing="0" border="0" width="635"> <tr> <td class="bbcpageFooter" align="center"> <img src="/web/20090213075335im_/http://www.bbc.co.uk/furniture/tiny.gif" width="635" height="1" alt=""/> <br/> <span id="scinatglobalfooter"> <a href="/web/20090213075335/http://www.bbc.co.uk/sn/">Science & Nature Homepage</a><br/> <a href="/web/20090213075335/http://www.bbc.co.uk/nature/animals/">Animals</a> | <a href="/web/20090213075335/http://www.bbc.co.uk/sn/prehistoric_life/">Prehistoric Life</a> | <a href="/web/20090213075335/http://www.bbc.co.uk/science/humanbody/">Human Body & Mind</a> | <a href="/web/20090213075335/http://www.bbc.co.uk/science/space/">Space</a> | <a href="/web/20090213075335/http://www.bbc.co.uk/sn/tvradio/">TV & Radio follow-up</a> <br/> <a href="#top">Go to top</a><br/> </span> <br/> </td> </tr> </table>  </td></tr></table><br clear="all"/><table cellpadding="0" cellspacing="0" border="0" lang="en" id="bbcpageTableFooter"><tr><td class="bbcpageFooterMargin" width="125"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="125" height="1" alt=""/></td><td class="bbcpageFooter" width="635" align="center"><img src="/web/20090213075335im_/http://www.bbc.co.uk/f/t.gif" width="635" height="1" alt=""/><br/><font face="arial, helvetica, sans-serif" size="1"><a class="bbcpageFooter" href="/web/20090213075335/http://www.bbc.co.uk/info/">About the BBC</a> | <a class="bbcpageFooter" href="/web/20090213075335/http://www.bbc.co.uk/help/">Help</a> | <a class="bbcpageFooter" href="/web/20090213075335/http://www.bbc.co.uk/terms/">Terms of Use</a> | <a class="bbcpageFooter" href="/web/20090213075335/http://www.bbc.co.uk/privacy/">Privacy & Cookies Policy</a><br/> </font></td></tr></table><br clear="all"/><script src="/web/20090213075335js_/http://www.bbc.co.uk/includes/linktrack.js?2" type="text/javascript"></script><script type="text/javascript" src="/web/20090213075335js_/http://www.bbc.co.uk/bbc.com/script/analytics/vs/vs.js"></script> </body> </html>