The Hair Theory

of Human Evolution

Bipedality. The big leap. Scientists are calling it huge. As well they might. Says a recent PBS report:

            "Anthropologists and evolutionary biologists are now agreed that upright posture and two-legged walking -- bipedality -- was the crucial and probably first major adaptation associated with the divergence of the human lineage from a common ancestor with the African apes. Once they had thought the development of a large brain or the making and use of stone tools was the pivotal early evolutionary innovation setting human ancestors, the hominids, apart from the apes. But these [developments] came much later, long after the transforming influences of bipedality."

             So far, I concur. No problem. What I beg to differ with — still quoting the PBS program — is this: