Nature's Wolverine


	Nature's Wolverine

balthazarus

7-19-2008 9:02 AM

256 views

tags:

wildlife

3 Comments |

Add a Comment

7-19-2008 2:43 PM

meancookie89

ech!

7-21-2008 4:56 PM

Silkweaver

Cool!

7-30-2008 7:41 PM

john henson

sweet

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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/68f2a89f-deed-4cb8-a0e8-d626dfff4b67/FA4AD157-1DA0-486F-BB2E-2A370C397AC2/" 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://harvardscience.harvard.edu/animal-vegetable-mineral/articles/boning-frogs-defenses" href="http://harvardscience.harvard.edu/animal-vegetable-mineral/articles/boning-frogs-defenses" style="font-size: 11px;">harvardscience.harvard.edu</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://harvardscience.harvard.edu/animal-vegetable-mineral/articles/boning-frogs-defenses"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/harvardscience.harvard.edu/img/03E12A9C-647D-4637-9892-5956A54B58C1" alt="" /></div></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://harvardscience.harvard.edu/animal-vegetable-mineral/articles/boning-frogs-defenses"><P>Harvard biologists have determined that some African frogs carry concealed weapons: when threatened, these species puncture their own skin with sharp bones in their toes, using the bones as claws capable of wounding predators.</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://harvardscience.harvard.edu/animal-vegetable-mineral/articles/boning-frogs-defenses"><P>"It's surprising enough to find a frog with claws," says Blackburn, a doctoral student in Harvard's <A href="http://harvardscience.harvard.edu/directory/programs/department-organismic-and-evolutionary-biology">Department of Organismic and Evolutionary Biology</A>. "The fact that those claws work by cutting through the skin of the frogs' feet is even more astonishing. These are the only vertebrate claws known to pierce their way to functionality."</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://harvardscience.harvard.edu/animal-vegetable-mineral/articles/boning-frogs-defenses"><P>"These nodules are also closely connected to the surrounding skin by dense networks of collagen," Blackburn says. "It appears they hold the skin in place relative to these claw-like bones, such that when the frog flexes a certain muscle in the foot, the sharp bone separates from the nodule and bursts through the skin."</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://harvardscience.harvard.edu/animal-vegetable-mineral/articles/boning-frogs-defenses">This claw-like structure is no conventional claw, though: It is pure bone</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/FA4AD157-1DA0-486F-BB2E-2A370C397AC2/blog/" title="blog or email this clip"><img src="http://content7.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>

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