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Your Inner Hedgehog [Education]
posted May 27 2014 22:58.29 by spic0m




The human hand, with its multi-talented thumb, might be man's greatest tool. But did you know we can trace that thumb, and the hand and arm it's connected to, all the way back to a 375 million-year-old fish named Tiktaalik?

This week Joe Hanson sits down with paleontologist and geneticist Dr. Neil Shubin to learn what a fish, and a little blue hedgehog, can teach us about the evolution of thumbs.



[Link: It's Okay To Be Smart]
 
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