I'm curious. Does anyone have definitive research that shows why West Asians, Central Asians, South Asians and North Africans tend to be the populations outside of Europe that exhibit blue or green eyes? Is it the West Eurasian part of their ancestry that explains this?
Why does Europe (particularly Northern/North-Eastern Europe and Scandinavia) have much higher frequencies of colored eyes than other parts of Europe?
In the case of East Asians, Sub-Saharan Africans, etc. is it some type of recent mutation?
Another member gave me this link but it apparently seems to still be a theory and not definitive yet.