The farther from the equator the lighter your skin.
Yup evolution survival of the fittest migration settlements time and distance from each other then coming together war disease and most of all I think time and looking for food how you get your food is important
I was wondering that you can map the history of the world by looking at the different populations and regions on Earth and supposedly we all did come from two humans in Africa it's been proven through genetics they weren't the only humans we just are all somehow related to these two humans crazy huh all 7.594 billion we're like the biggest ant pile ever
two of each is an evolutionary dead end full of genetic disasters..