Human Origins 101 | National Geographic

The story of human evolution began about 7 million years ago, when the lineages that lead to Homo sapiens and chimpanzees separated. Learn about the over 20 early human species that belong in our family tree and how the natural selection of certain physical and behavioral traits defined what it means to be human.
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Human Origins 101 | National Geographic
   • Human Origins 101 | National Geographic  

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