How Dexterous Thumbs May Have Helped Shape Evolution Two Million Years Ago

via Smithsonian

Now a new study combines the ancient evidence of fossil fingers and thumbs with cutting-edge computer muscle modeling to conclude that South African hominins boasted flexible, capable thumbs much like ours as far back as two million years ago. “It is remarkable that such a level of thumb dexterity, similar to that of people living today, would be observed in hominins alive two million years ago,” says Katerina Harvati, a paleoanthropologist at the Senckenberg Center for Human Evolution and Paleoenvironment, University of Tübingen (Germany).

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