24 Jul
2007
Why Humans Walk on Two Legs
A team of anthropologists that studied chimpanzees trained to use treadmills has gathered new evidence suggesting that our earliest apelike ancestors started walking on two legs because it mandatory less energy than getting around on all fours. "When our earliest ancestors started walking on two legs, they took the first steps toward becoming human," said lead researcher Michael Sockol of UC Davis. "Our findings help answer why"........
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Tuesday, July 24th, 2007 at 2:29 am under
