As the Africans migrated to northern regions, lighter skin colour evolved to optimise vitamin D production. Who could predict that a vitamin synthesis would be a reason for such a racist outbreak.
I am out of the loop, what is the racist outbreak? Our ancestors even interbreed with the Neanderthals, which is arguably another species or subspecies, true inter-species romance.
I mean the skin colour discriminations. The main biological reason we have different skin colours is vit D synthesis, wich actually should not lead to discriminations.
