The famous sequence that shows the evolution of man from knuckle-dragging ape to an upright human may be flawed, a new study has revealed. Researchers from Duke University who examined the wrist bones of several primate species believe our early human ancestors never used their knuckles to walk like gorillas.
Instead they evolved from other apes who spent most of their time in trees and descended to the ground upright. The debate over the origins of human bipedalism has been argued since Charles Darwin's day, dividing into two competing models.
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