Monday, January 18, 2010

BBC News - Feet hold the key to human hand evolution

BBC News - Feet hold the key to human hand evolution: "Scientists may have solved the mystery of how human hands became nimble enough to make and manipulate stone tools.
The team reports in the journal Evolution that changes in our hands and fingers were a side-effect of changes in the shape of our feet.

Human and ape hand (SPL)
Scientists simulated the change from an ape-like hand to a human-like hand

This, they say, shows that the capacity to stand and walk on two feet is intrinsically linked to the emergence of stone tool technology.
The scientists used a mathematical model to simulate the changes."

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