Most people seem to think that humans evolved with dark skin in sunny Africa. Then, when paleohumans migrated out of Africa, they evolved lighter skin, which was selected for by the need to produce vitamin D.

I think human skin evolved from neutral-colored chimpanzee skin. On Bioko Island, one of the rainiest places on Earth, naked paleohumans living mostly in the water would maintain this neutral skin color. Paleohumans who migrated to the African mainland would evolve darker skin, and those who migrated along the coast to Eurasia would evolve lighter skin.

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