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      Digital & 4-Year Archive

      Scientific American May 2003

      Out of Africa Again... and Again?

      Africa is the birthplace of humanity. But how many human species evolved there? And when did they emigrate?

      • By Ian Tattersall on May 1, 2003

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      More in the May 2003 issue of Scientific American
      • Who were the Neandertals?
      • Once were Cannibals
      • The Recent African Genesis of Humans
      View Full Contents
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