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Starman
SFN Regular

Sweden
1613 Posts

Posted - 12/07/2005 :  05:31:02  Show Profile Send Starman a Private Message
Another good article from Carl Zimmer, Tree or Trellis
quote:
Templeton has found that he can easily reject the idea that all our genes come from the same 200,000 year old population of African humans. Instead, he finds evidence of three separate expansions out of Africa.

The first he estimates to have occurred 1.9 million years ago--which just so happens to coincide with the earliest fossils of Homo erectus outside of Africa. Then he finds another expansion he dates to 650,000 years ago--which just so happens to coincide with the emergence of hominids in Europe of hominids that are believed to give rise to Neanderthals. The last expansion can be traced back 130,000 years ago.
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