My little tongue in check sentence implied fooling with the sheep. But are you really serious?
Humans spread out from Africa, most likely, and the founder population had a different set of gene frequencies that when separated by time and geography resulted in genetic drift to make the different characteristics of people you see today. In the case of skin color it was not genetic drift, but adaptation to sunlight and the vitamin D equation that caused northern people to be light skinned.
"But are you really serious? "
Apparently not, as I took your post to be some Creationist nonsense. My bad!!