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They rely on <span class="a term-info-a" id="brief-summary-toggle-0">drag powered swimming</span> to move around.</p> <div uk-dropdown='mode: click; toggle: #brief-summary-toggle-0'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="https://eol.org/schema/terms/drag_based_swimming">https://eol.org/schema/terms/drag_based_swimming</a></li> <li><strong>Definition:</strong> Drag swimmers use a cyclic motion where they push water back in a power stroke, and return their limb forward in the return or recovery stroke. When they push water directly backwards, this moves their body forward, but as they return their limbs to the starting position, they push water forward, which will thus pull them back to some degree, and so opposes the direction that the body is heading. This opposing force is called drag. The return-stroke drag causes drag swimmers to employ different strategies than lift swimmers. Reducing drag on the return stroke is essential for optimizing efficiency.</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bot%5D=653&tq%5Bf%5D%5B0%5D%5Bp%5D=1357&tq%5Br%5D=record">show all records</a> </div> <p>EOL has data for <a href="/pages/326873/data">13 attributes</a>, including:</p> </div> <ul class='sample-traits'> <li> <div> <div class='sample-trait-key a'>Body symmetry</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://eol.org/schema/terms/body_symmetry">http://eol.org/schema/terms/body_symmetry</a></li> <li><strong>Definition:</strong> overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bp%5D=12748&tq%5Br%5D=record">show all records</a> </div> </div> <div> <div class='sample-trait-val a'>bilaterally symmetric</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://purl.obolibrary.org/obo/PATO_0001324">http://purl.obolibrary.org/obo/PATO_0001324</a></li> <li><strong>Definition:</strong> being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bot%5D=8222&tq%5Bf%5D%5B0%5D%5Bp%5D=12748&tq%5Br%5D=record">show all records</a> </div> </div> </li> <li> <div> <div class='sample-trait-key a'>cellularity</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://purl.obolibrary.org/obo/PATO_0001992">http://purl.obolibrary.org/obo/PATO_0001992</a></li> <li><strong>Definition:</strong> An organismal quality inhering in a bearer by virtue of the bearers consisting cells. [ PATOC:GVG ]</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bp%5D=13171&tq%5Br%5D=record">show all records</a> </div> </div> <div> <div class='sample-trait-val a'>multicellular</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://purl.obolibrary.org/obo/PATO_0001993">http://purl.obolibrary.org/obo/PATO_0001993</a></li> <li><strong>Definition:</strong> A cellularity quality inhering in a bearer by virtue of the bearers consisting of more than one cell. [ PATOC:GVG ]</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bot%5D=13172&tq%5Bf%5D%5B0%5D%5Bp%5D=13171&tq%5Br%5D=record">show all records</a> </div> </div> </li> <li> <div> <div class='sample-trait-key a'>geographic distribution includes</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://eol.org/schema/terms/Present">http://eol.org/schema/terms/Present</a></li> <li><strong>Definition:</strong> This organism is known to be present in this location or region. Not exclusive; other regions may also be reported.</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bp%5D=941&tq%5Br%5D=record">show all records</a> </div> </div> <div> <div class='sample-trait-val a'>New Guinea</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://www.geonames.org/2082514">http://www.geonames.org/2082514</a></li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bot%5D=5882&tq%5Bf%5D%5B0%5D%5Bp%5D=941&tq%5Br%5D=record">show all records</a> </div> </div> </li> <li> <div> <div class='sample-trait-key a'>habitat</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://rs.tdwg.org/dwc/terms/habitat">http://rs.tdwg.org/dwc/terms/habitat</a></li> <li><strong>Definition:</strong> A category or description of the habitat in which the Event occurred.</li> <li><strong>Comment:</strong> Example: "oak savanna", "pre-cordilleran steppe"</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bp%5D=1003&tq%5Br%5D=record">show all records</a> </div> </div> <div> <div class='sample-trait-val a'>marine benthic</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://purl.obolibrary.org/obo/ENVO_01000024">http://purl.obolibrary.org/obo/ENVO_01000024</a></li> <li><strong>Definition:</strong> The marine benthic biome (benthic meaning 'bottom') encompasses the seafloor and includes such areas as shores, littoral or intertidal areas, marine coral reefs, and the deep seabed.</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bot%5D=1413&tq%5Bf%5D%5B0%5D%5Bp%5D=1003&tq%5Br%5D=record">show all records</a> </div> </div> </li> <li> <div> <div class='sample-trait-key a'>locomotion</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://purl.obolibrary.org/obo/GO_0040011">http://purl.obolibrary.org/obo/GO_0040011</a></li> <li><strong>Definition:</strong> Self-propelled movement of a cell or organism from one location to another. </li> <li><strong>Attribution:</strong> <a href='[database_cross_reference: GOC:dgh]'>[database_cross_reference: GOC:dgh]</a></li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bp%5D=1357&tq%5Br%5D=record">show all records</a> </div> </div> <div> <div class='sample-trait-val a'>drag powered swimming</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="https://eol.org/schema/terms/drag_based_swimming">https://eol.org/schema/terms/drag_based_swimming</a></li> <li><strong>Definition:</strong> Drag swimmers use a cyclic motion where they push water back in a power stroke, and return their limb forward in the return or recovery stroke. When they push water directly backwards, this moves their body forward, but as they return their limbs to the starting position, they push water forward, which will thus pull them back to some degree, and so opposes the direction that the body is heading. This opposing force is called drag. The return-stroke drag causes drag swimmers to employ different strategies than lift swimmers. Reducing drag on the return stroke is essential for optimizing efficiency.</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bot%5D=653&tq%5Bf%5D%5B0%5D%5Bp%5D=1357&tq%5Br%5D=record">show all records</a> </div> </div> </li> <li> <div> <div class='sample-trait-key a'>mineralized skeleton contains</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="https://eol.org/schema/terms/mineralizedSkeletonContains">https://eol.org/schema/terms/mineralizedSkeletonContains</a></li> <li><strong>Definition:</strong> Component found in mineralized skeletal tissue, (a specialized form of biogenic tissue in which the extracellular matrix is mineralized, and which functions in mechanical and structural support.)</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bp%5D=1562&tq%5Br%5D=record">show all records</a> </div> </div> <div> <div class='sample-trait-val a'>calcium carbonate</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://purl.obolibrary.org/obo/CHEBI_3311">http://purl.obolibrary.org/obo/CHEBI_3311</a></li> <li><strong>Definition:</strong> A carbonate salt that has formula CO3Ca</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bot%5D=320&tq%5Bf%5D%5B0%5D%5Bp%5D=1562&tq%5Br%5D=record">show all records</a> </div> </div> </li> <li> <div> <div class='sample-trait-key a'>supporting structures and enclosures</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://www.marinespecies.org/traits/SupportingStructuresEnclosures">http://www.marinespecies.org/traits/SupportingStructuresEnclosures</a></li> <li><strong>Definition:</strong> Hard framework, internal or external, which supports and protects softer parts of plant, animal or unicellular organism, and to which muscles usually attach in animals, includes skeletons (derived from Lawrence, 2005).</li> <li><strong>Attribution:</strong> <a href='http://www.marinespecies.org/traits/wiki/Traits:SupportingStructuresEnclosures Lawrence, E. (ed.) (2005) Henderson's dictionary of Biology (13th edition). London, United Kingdom: Pearson Education Limited. '>http://www.marinespecies.org/traits/wiki/Traits:SupportingStructuresEnclosures Lawrence, E. (ed.) (2005) Henderson's dictionary of Biology (13th edition). London, United Kingdom: Pearson Education Limited. </a></li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bp%5D=2421&tq%5Br%5D=record">show all records</a> </div> </div> <div> <div class='sample-trait-val a'>exoskeleton</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://purl.obolibrary.org/obo/UBERON_0006611">http://purl.obolibrary.org/obo/UBERON_0006611</a></li> <li><strong>Definition:</strong> Exoskeleton or shell, including those of mollusks, turtles, insects and crustaceans</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bot%5D=4381&tq%5Bf%5D%5B0%5D%5Bp%5D=2421&tq%5Br%5D=record">show all records</a> </div> </div> </li> <li> <div> <div class='sample-trait-key a'>trophic guild</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://eol.org/schema/terms/TrophicGuild">http://eol.org/schema/terms/TrophicGuild</a></li> <li><strong>Definition:</strong> A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bp%5D=2561&tq%5Br%5D=record">show all records</a> </div> </div> <div> <div class='sample-trait-val a'>scavenger</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://www.wikidata.org/entity/Q172867">http://www.wikidata.org/entity/Q172867</a></li> <li><strong>Definition:</strong> organism that feeds on dead animal and/or plant material</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bot%5D=2192&tq%5Bf%5D%5B0%5D%5Bp%5D=2561&tq%5Br%5D=record">show all records</a> </div> </div> </li> <li> <div> <div class='sample-trait-key a'>water depth</div> <div uk-dropdown='mode: click'> <ul class='desc-meta'> <li><strong>URI:</strong> <a href="http://rs.tdwg.org/dwc/terms/verbatimDepth">http://rs.tdwg.org/dwc/terms/verbatimDepth</a></li> <li><strong>Definition:</strong> The depth of seawater at a location where this organism has been observed or collected.</li> </ul> <a href="/terms/search_results?tq%5Bf%5D%5B0%5D%5Bp%5D=2712&tq%5Br%5D=record">show all records</a> </div> </div> <div> <div class='sample-trait-val'>300 m</div> </div> </li> </ul> <link rel="stylesheet" media="all" href="/assets/leaflet-0c7c49ff6cef60703f21846c767458278dc2e5a07b6df4416a14a9ee18fd8764.css" /> <div class='map-contain-overview-section'> <div class='map-contain map-contain-overview'> <div class='map' data-icon-path='/assets/maps/pin24-d17b03d0a7bd19160afaf9201eac240d5c79b6181ea425ebf09355f73099e856.png' data-icon-retina-path='/assets/maps/pin48-dc733efea4bd3e7cb7d10c3faf5e670f9e5833f09ef9433045fc1a9dd67d9948.png' data-map-data-path='/data/map_data_dwca/73/326873.json' id='map'></div> <div class='uk-text-meta map-caption'>Known occurrences, collected specimens and observations of Aatolana rapax Bruce 1993. <a href='https://gbif.org/species/2213042'>View this species on GBIF <i class='fa fa-external-link'></i></a></div> </div> </div> </div> </div> <div class='l-overview-full'> <div class='trophic-web-contain-overview js-trophic-web-remote-contain' data-load-path='/pages/326873/trophic_web'> <div class='uk-flex uk-flex-center js-spinner'> <div class='spinner' uk-position='center' uk-spinner></div> </div> </div> </div> </div> </div> <div class='footer'> <ul class='footer-section footer-section-eol-info'> <li><a href="/docs/what-is-eol">What is EOL?</a></li> <li><a href="/docs/what-is-eol/whats-new">What's New?</a></li> <li><a href="http://discuss.eol.org">The EOL Forum</a></li> <li><a href="https://education.eol.org">Education</a></li> <li><a href="/docs/what-is-eol/citing-eol-and-eol-content">Citing EOL</a></li> <li><a href="/docs/what-is-eol/terms-of-use">Terms of Use</a></li> <li><a href="/docs/what-is-eol/data-services">Data Services</a></li> <li><a href="/docs/discover/food-webs">Food 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