[Taxacom] Homo sapiens neanderthalensis

John Grehan calabar.john at gmail.com
Fri May 17 13:20:11 CDT 2013


So interbreeding defines species?

I have not kept up with the molecular argument so I would be interested to
know if the 'Neanderthal' genes are identical in all base pairs and base
numbers? How have they been shown to be the same genes?

John Grehan


On Sat, May 18, 2013 at 5:37 AM, Ken Kinman <kinman at hotmail.com> wrote:

> Dear All,
>
>
>
>      I have long advocated recognizing Neanderthals as an extinct
> subspecies (Homo sapiens neanderthalensis), not as a separate species.  It
> has been a long time in coming, but there is increasing evidence of
> considerable interbreeding between modern humans and Neanderthals, so much
> so that most humans today carry 2-4% Neanderthal genes.  Denisovan genes
> apparently account for about 6-8% of present-day humans.   The percentages
> would probable be higher if Neanderthal populations had been higher.
>
>
>
>      Actual fossil individuals that appear to be crosses between
> Neanderthals and modern humans have been found.  One was from a Neanderthal
> female and a modern male, although there are no known living descendants in
> that case (only from Neanderthal males and modern females), since
> mitochondrial Neanderthal genes do not appear in living populations.   I
> suspect that that there were a lot of Neanderthal males kidnapping modern
> females and having children with them (or was it more often consentual?).
>
>
>
>      So for those who still prefer to recognize Neanderthals as a separate
> species, what are your arguments for continuing to do so?    Anyway, here
> is one article which came out just today:
>
>
>
> Pennisi, Elizabeth (2013), "More Genomes from Denisova Cave Show Mixing of
> Early Human Groups", Science 340: 799, doi:10.1126/science.340.6134.799
>
>
>
>
>
>
>
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