youtor.org
Where Do Our Opposable Thumbs Come From — HHMI BioInteractive Video
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=lDSkmb4UTlo
Our opposable thumbs evolved from the hand structure of ancient primates. This instructional classroom video explores the human evolution timeline through our hands. • The fossil of Notharctus, a tree-dwelling animal, sheds light on the evolution of early primates and human anatomy. One of the earliest examples in the fossil record of a creature with bones similar to human hand bones, Notharctus opens a window onto the evolution of opposable thumbs. • For more videos on human evolution, see our evolution playlist at • Playlist • For more educational resources on evolution, visit the BioInteractive website at http://www.hhmi.org/biointeractive/yo...
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