Surprising research based on two African fossils suggests the evolution of early man wasn't a steady march to human ascendency and more like meandering slog through genetic backwaters. The discovery by Meave Leakey, a member of a famous family of paleontologists, shows that two species of early human ancestors lived at the same time in Kenya. That pokes holes in the chief theory of man's early evolution - that one of those species evolved from the other. (Journal Register)
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Enrique Gili is a freelance writer covering Lifestyles of Health and Sustainability (LOHAS), issues for regional magazines in the Southland and beyond. I live in Ocean Beach, San Diego the coolest beach town around.
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Old Bones Reveal New Clues About Evolution
Category: Environment
Posted on: August 9, 2007 12:25 PM, by EJGili
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This traditional interpretation has always been suspect to me for, as a good student of evolution knows, linear and evolution rarely go hand in hand (and progression never). Evolutionary history is a complex branching tree without direction or purpose. This doesn't imply randomness, but rather demonstrates how organisms adapt to their local environments instead of progressing to some ultimate goal.
I have more on this story at The Primate Diaries.
Posted by: The Primate Diaries | August 9, 2007 02:46 PM