> All of us are very closely related as far as species go, so there must have been a serious population bottleneck at one point. We’re all more similar to each other than two chimpanzees.
Is this true of Africans as well? I would expect there to be much more variety in humanity's original homeland than in the rest of the world.
It's true of Africans as well, but you can divide humans by the little variation we have, and it turns out there are a dozen or so groups in sub-Saharan Africa, and one group pretty much everywhere else.
Humans haven’t been around long enough for that to happen. The most divergent groups outside Africa are that way because we met our distant relatives like Neanderthals, but it seems in our case they were just incompatible enough it didn’t add that much.
Africans esp the San have much more diversity than everyone else but IIRC it’s still remarkably low for our current population size.
Is this true of Africans as well? I would expect there to be much more variety in humanity's original homeland than in the rest of the world.