On Wed, Oct 23, 2013 at 10:28:19AM +1300, LizR wrote:
> I didn't realise there was still much doubt about this. I thought studying
> human DNA had made the out of Africa hypothesis fairly robust. (Obviously
> more confirming evidence will add another sigma, or whatever...)

There is some evidence of interbreeding between the H. sapiens that
migrated from Africa, and the indigenous Neanderthal and Denisovan
species. IIRC, the indigineous species contributed something like 10%
of the genetic code to the humans from those areas - N to Europeans,
and D to some island populations off Asia.

So its not quite Out of Africa exlusively, more like mostly "Out of
Africa", with a small dash of "Multiregionalism".

But its fascinating what we've learnt just in the last decade. When my
son asked me (for a science assignment) to name a significant
scientific technology, I immediately said "PCR"!


Prof Russell Standish                  Phone 0425 253119 (mobile)
Principal, High Performance Coders
Visiting Professor of Mathematics      hpco...@hpcoders.com.au
University of New South Wales          http://www.hpcoders.com.au

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