I realised that for some reason, I still don’t know this. Why do we have different skin colors, hair textures, eyes or such? Is it just a random thing that happened or are there evolutionary reasons to it?
I realised that for some reason, I still don’t know this. Why do we have different skin colors, hair textures, eyes or such? Is it just a random thing that happened or are there evolutionary reasons to it?
Some features, such as melanin levels, are due to evolutionary pressures. High levels of melanin protect you from the sun, lower levels of melanin boost your vitamin D production.
Other features are just random. Over time, human populations were affected by random changes that weren’t exactly useful but not detremental either. They’re called sprandels. According to a quick Google search, blue eyes don’t seem to have any advantages, but not really any major disadvantages either, so that would be an example of that.