2009-03-23T18:29:51Z <p><b>Turtles</b> are <a href='/en/Reptile' title='Reptile'>reptiles</a> of the <span title='Order (biology)'>order</span> <b>Testudines</b> (the <span title='Crown group'>crown group</span> of the <span class='mw-redirect' title='Superorder'>superorder</span> <b>Chelonia</b>), characterised by a special <a href='/en/Bone' title='Bone'>bony</a> or <span title='Cartilage'>cartilaginous</span> <a href='/en/Exoskeleton' class='mw-redirect' title='Animal shell'>shell</a> developed from their <span title='Rib'>ribs</span> that acts as a <span title='Shield'>shield</span>. "Turtle" may either refer to the Testudines as a whole, or to particular Testudines which make up a <span title='Form taxon'>form taxon</span> that is not <span class='mw-redirect' title='Monophyletic'>monophyletic</span>—see also <a href='/en/Sea_turtle' title='Sea turtle'>sea turtle</a>, <span title='Terrapin'>terrapin</span>, <a href='/en/Tortoise' title='Tortoise'>tortoise</a>, and the discussion <span>below</span>.</p> <p>The order Testudines includes both extant (living) and <a href='/en/Extinction' title='Extinction'>extinct</a> species. The earliest known turtles date from 215 <span title='Million'>million</span> years ago, making turtles one of the oldest reptile groups and a more ancient group than <a href='/en/Lizard' title='Lizard'>lizards</a> and <a href='/en/Snake' title='Snake'>snakes</a>. About 300 <span title='Species'>species</span> are alive today,<sup title='This claim needs references to reliable sources from October 2009' class='Template-Fact' style='white-space:nowrap;'>[<i>citation needed</i>]</sup> and some are highly <a href='/en/Endangered_species' title='Endangered species'>endangered</a>.</p> <p>Like other reptiles, turtles are <span title='Ectotherm'>ectotherms</span>—varying their internal temperature according to the ambient environment, commonly called <span title='Poikilotherm'>cold-blooded</span>. However, <a href='/en/Leatherback_turtle' class='mw-redirect' title='Leatherback sea turtle'>leatherback sea turtle</a> have noticeably higher body temperature than surrounding water because of their high metabolic rate.</p> false fotopedia-en-Turtle fotopedia Turtle false 2009-10-12T03:39:30Z 3.51071 1970-01-01T00:00:00Z ["figonacci-bvtAiVMIVwo","hwal-D0bsIBVQQpE","ktwenchuan-vSwiQ5l6gqQ","gkopitar-GD8oCCn4GCE","mslorraine-pp5FTNKkKAw","flickr-3395073737","raphael-518983ff68b9edc093509066b629096b","raphael-d294b09a70c6dd786104ff2dd9d7c796","flickr-2576044174","flickr-2510426511","flickr-2375248876","flickr-1434063851","flickr-2110546087","flickr-1142625133","flickr-565480793","flickr-450900152","flickr-2680093104","flickr-259419176","hwal-NuwQ_hpt2O4","flickr-188155564","flickr-4172360754","flickr-159146447","flickr-49089662","flickr-42612164","flickr-30644335","flickr-247768193","flickr-6239271","flickr-340751615"] { "country": { "CA": 8, "DE": 3, "ES": 3, "FR": 79, "IN": 32, "SG": 9, "US": 19, "VN": 1, "XX": 4 }, "history_day": { "2009-05-27": 18, "2009-06-11": 2, "2009-07-07": 6, "2009-07-13": 11, "2009-07-14": 1, "2009-07-15": 4, "2009-07-16": 6, "2009-07-17": 3, "2009-07-20": 2, "2009-07-22": 1, "2009-09-11": 4, "2009-09-12": 4, "2009-09-14": 4, "2009-09-15": 6, "2009-09-18": 1, "2009-10-08": 24, "2009-10-19": 1, "2009-10-20": 1, "2009-10-21": 5, "2009-10-23": 17, "2009-10-24": 1, "2009-10-25": 3 }} default