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Originally Posted by JugglingReferee
So we're all black then? What's the big deal then if a black person becomes President?
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I never said that. Fossils of prehistoric humans usually consist of fossilized hard material, teeth, bones, etc., not softer tissue like muscle, internal organs, or skin.
However, some scientists believe that humans that live in equatorial areas, now, or in prehistory, that get a lot of sunlight, evolve darker skin pigments to decrease the chance of getting skin cancer. As humans migrated out of Africa, into northern climates, that received lesser amounts of sunlight, they may have evolved lighter skin coloration, to best absorb sunlight, as a way of providing the body with Vitamin D, which is produced by the skin when the skin is exposed to sunlight.