I have a new theory about white folks. And that is that we turned white in the Ice Age for the same reason that Polar Bears turned white and that is to camouflage in the snow. If you think about it, all other white animals such as a snow leopard or a snow fox are white for this reason.
If you think about it, when you are trying to sneak up on a Woolly Mammoth you will stand out more in the snow if you are dark like a Brown Bear.
Also, why did Scandinavians evolve blonde hair and blue eyes? Well think about it, when they are sneaking about in the snow with their Polar Bear jackets on with the hood up and only their face visible, the Polar Bear would see two dark eyes and a black fringe in the white snow, so they evolved light eyes and light blonde hair to camouflage themselves.
I know there is also the thing about absorbing vitamin D and sexual selection of blondes but I think that is a red herring.
I think if the Ice Age continued then hair would have evolved lighter and whiter and we would become as pale as ginger people. But now that the Ice Age is over and the planet is getting hotter we no longer need to hide in the snow so the blonde hair will die out.
I think that is why in cold countries people think blondes are hot because subconsciously we are thinking they would produce children who are good at hiding in the snow. Whilst in hot countries like Brazil blondes are not so desired because there is no snow.
The survival of the fittest would go like this: A woman has two children, one dark skinned and one light skinned. In the Ice Age the dark skinned child would starve because the woolly mammoths would spot him in the snow so only the light skinned child would survive and reproduce.
The only problem with my theory is that in the Ice Age we didn't all run around naked. But still some of your face and eyes would be visible to the mammoths.
Thanks for listening.