Soleron on 30 June 2010
| dany612 said: Yeah I get it. But I still can't understand why Asians have those squinty eyes. Indians were probably formed because they were Asians who traveled from Asia to Northern and Southern American which explains there complexion and all. But yes we are all a human race. After all if everyone was the same, we wouldnt have such a wide variety of hot girls ;) |
Genetic drift. When populations of a species are isolated from each other, superficial attributes like that will tend to change on their own with minimal evolutionary pressure.
It also helps to recognise your own tribe versus others. It is evolutionary favourable to support your own people because they are more likely to be related to you and hence carry your genes.
I recommend The Selfish Gene by Richard Dawkins. Classic and accessible text on evolutionary biology and what it does.
