Some evolution talks had me wondering about this.
I've heard the same story that most of you have that racism is silly because we all started out as the same race in africa (as the story goes, prodominantly dark skinned because of the heat). I'm not doubting that humans first came into existance in africa but i've never seen a black person/bloodline ever lighten up outside of producing offspring with a lighter skinned person (michael jackson aside). Light skinned people can get tans (both naturally from the sun and artificially) but i've never seen a case where a dark skinned individual got a lighter tone just by simply living in the cold (again michael jackson being the only exception here).
Asians/orientals are for the most part light skinned (in fact the only visible difference between them and your traditional "white" person is eye shape) and this is confusing because they have a rather warm and very sunny climate that they have lived in for several centuries (maybe even a few millenniums) at this point. If they were dark skinned, then lightened by europes could climate and then again exposed back into the sun wouldn't they have darkened again?
Most European countries are mostly white/very light skinned as is russia's asian side, canada, and the US (2/3 "white" majority in the US according to the most recent census info). Not exactly sure what qualifies as white as i had somebody explain to me that arabians are actually white descendants. Something about people living in the caucas mountains (which i believe is in the middle east area or around it) hence caucasian being used as a term for light skinned people.
So here's the evolution/adaption based question: With all the different established races, how did they all come to be?
Aside from inter-racial offspring, i've never seen anyone "adapt" new racial features. I'm not saying that different races of people are different species from others but the variation among the many different established human races is almost as indepth as those between different animal species that seemingly have no genetic link to one another's characteristics. Amphibian-reptile, reptile-bird, etc.
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