'Raptors were climbers, not slashers


	'Raptors were climbers, not slashers

onleyone

11-25-2007 5:00 PM

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tags:

dinosaur, fossil, raptor, prey, velociraptor, deinonychus, slashing, toe, claw, grip, puncture

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/4b230205-dba6-400c-a4e7-19c2858b76cd/0BAF88D0-D051-4715-9C1B-9BE00EA70469/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.newscientist.com/article.ns?id=mg18825224.600" href="http://www.newscientist.com/article.ns?id=mg18825224.600" style="font-size: 11px;">www.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article.ns?id=mg18825224.600"><P>Phil Manning at the University of Manchester, UK, and colleagues built a robotic claw based on fossils of velociraptor and deinonychus, a 3-metre-long, 80-kilogram relative, to test its slashing power. They used hydraulics to drive it into a side of pork at different velocities, mimicking a kick, but rather than slashing, the claw only punctured the flesh.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article.ns?id=mg18825224.600"><P>Manning now thinks that velociraptor gripped its herbivorous prey much like a lion grips a buffalo (<I>Biology Letters</I>, DOI: 10.1098/rsbl.2005.0395). "Velociraptor wouldn't be shaken off by the powerful movements of larger prey animals, because the toe claws provided such a firm grip," says Paul Barrett of the Natural History Museum in London. The velociraptor would then use its razor-sharp teeth to make slashing wounds, so that its prey bled to death.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/0BAF88D0-D051-4715-9C1B-9BE00EA70469/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>