Why are there different eye colours?
My guess is because of the pigment, because dark-skinned people produce more pigment in every sense and thus the eyes get more pigmented. This is the contrary with light-skinned people who produce less pigment. Also happens with albinos, who cannot produce enough pigment and have sort-of-blue eyes. Anyways, the doubt factor remains in me because that would mean that if a group of nordic people decide to form a tribe and live in Africa, isolated from the rest, and have descendants during about 5000 years, they would eventually become very dark skinned and their eyes would turn black. And that is veeeeery unlikely to happen, imo. Maybe there were monkeys who evolved into hominids and scattered to different places, opposite like Greenland and Congo. Then, in Congo the hominids stayed like monkeys but without all the hair and just turned into the humans that live there, and produced a lot of pigment “to suit the sun”; opposedly, in Greenland, hominids lost their pigment because rays of lig
