[UnbelievingScumOnTheOtherSide]

It took a lot longer than that for natural selection to turn into the gradient we see. But I would bet there is selection going on for lighter skin in native eskimo populations, especially if compared to native south american populations.

What you are saying is that modern man's migration south to north was 75,000 years ago (all Black from Africa) and then migration was strictly west to east or not at all (while Blacks turned into Asians and White people, even in places as close and sunlit as Egypt where no desert barrier existed as recently as 6000 years ago) until historic times when south to north migration suddenly resumed. Does that sound rational?

[shubi]

No that is not what I am saying.

It is obvious Eskimos are Asian. That migration occurred about 75000 (or more) years ago. The population of the Earth by modern humans occurred before that.