How some non east asian groups have epicanthic folds too?
I've been looking for some sort of detailed explanation for this but it's all in bits and pieces. basically I wanted to ask certain things and it'll be great if someone could connect them all as one explanation pls.
what is it about the ice age and Bering strait that we're talking here? what are both of them and what's the timeline of these things?
i picked that epicanthic folds developed for protection from cold and harsh weather then why do we not see it in the european people?
I saw some mentions of how all humans started from East Africa then travelled around to populate the world, so did we develop our features according to places we went to populate as evolution happened (dumb addition - but would that mean that at one point we all might've looked alike?) so I need some kind of background on that too if you could provide (how, what, when, what after)
besides the epicanthic fold, did the other features in different groups develop differently? like bone structure, skull shape and others? what do these structures and shapes mean and how do they show up from region to region?
I think that'll all be from my end. please please connect your points together in a structured way according to the timelines so that I can understand it better.
if you use any technical terms pls explain those as well, if you feel any other point needs to be added to the explanation that I've not mentioned then kindly do. and pls don't give ai answers🙏🏻