On Thu, 10 Aug 2000, Amadeus Schmidt wrote:

> The steppe-tundra.... i've never seen any explanation at which time or
> in which place Rays megafauna-tundra should have occured, despite i've asked
> several times after it.

There is some description of steppe-tundra at one of the
references you supplied...

This one:

> explanation of the climate zones therein:
> http://www.esd.ornl.gov/projects/qen/adams3.html

Note the speculation that this was the climate of 30-40% of
Eurasia.

> >My idea is that it is precisely the "quest for fat" that lured
> >humans into cooler and cooler environments.
>
> I agree for this.
> Or expressed differentely:
> Only fat made the expansion to the north possible.

But why go at all?  Why were humans interested in expanding to
the north if they could make an easy living eating nuts and
tubers, and stealing a few eggs?

Todd Moody
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