As a Freeper and a "Savage", I appreciate more theories and observations. Here's one that I came up with years ago (I'm talkin' grade school):
Thinking about the migration of peoples, in school we were told we all came out of Africa, and my people were wandering Asians..
I thought about this and about the emergence time stories from my family (Dine' or Navajo) and considered the different appearances of peoples.
Why do Asians have slanted eyes? Is it because of bright sun? if so, why do Africans lack this?
Who else has slanted eyes? The far north peoples - snow glare.
there's a bunch more but what I came up with is that modern humans or at least a sizable portion of them came from here, the Americas.
Blowing sands and dust in the Gobi Desert?
The Asian scientists and anthropologists have been arguing for years that *we* did not come from Africa, but from Asia. The eyes aren’t actually slanted, but have the mongoloid feature that gives them an extra fold of skin lower into the eye, that gives them a slanted look. I read an anthrological book once that was fascinating and the reasons people evolved how they did. And why. Although some remains a mystery.