Steve Leonard tells the astonishing story that links simple microbes to mankind and explains the extraordinary variety of life seen today.... More >
Steve Leonard tells the astonishing story that links simple microbes to mankind and explains the extraordinary variety of life seen today.
Aired:
May 19, 2005
Human Life
Five million years ago we separated from our chimpanzee cousins. Steve Leonard looks back to explain how landscape changes drew us down from the trees and out on to the newly formed African savannah.
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