Is there anything that may seriosly challenge the OOA theory?

As of now, no

t. Paleoanthropologist

As >>1618279 said, not now. But new stuff is discovered constantly, and our knowledge of the history of our species is quite muddy.

No, but I think the left's fears about any notion of racial difference prevents many people from discussing Neanderthal/Denisovan admixture, or lack thereof. I understand that hominids in general originated in Africa also, but you get my point...

>>1618268
What are the alternatives?

>>1618303
Maybe the people who present this theory shouldn't put so much political emphasis on it either. (basically no storm/pol/ sperging out) Just present the facts.
Even so, the theory of Neanderthal/Denisovan admixture seem to be gaining a bit of attention on the internet.

>>1618428
Multi-regional hypothesis. Not to be confused with polygeny.

It's not a very good alternative, the evidence vastly favors Out of Africa.

>>1618438
So why not

>A compromised version of the Out-of-Africa hypothesis emphasizes the African origin of most human populations but allows for the possibility of minor local contributions (Model B).

http://www.nature.com/scitable/content/out-of-africa-versus-the-multiregional-hypothesis-6391

>>1618268

The africans were also "evolving" at the same time of the european and asian peoples.

They just stayed in Africa and didnt come into interbreeding with neanderthals or denisovans.

This little sentence saaps much energy behind the racial supremacy angle because this interests me alot.

File: 1453052824790.jpg (76KB, 617x932px) Image search: [Google]

76KB, 617x932px

>>1618428

One of my Russian buddies believes in one of their nationalist mystical theories that primates evolved in the arctic or some bullshit

>>1619455
What's his reasoning for this?

>>1618451
Models A and B are fine, but C and D are just bullshit.

C suggests that homo erectus slowly evolved into homo sapiens across all continents. Not only does this imply a steady flow of people between continents, but it also means that one species of human would have to be best suited in every region, rather than evolution into several species to fit local biomes and climate.

D is simply impossible because if four populations of one species are separated, when they evolve, they wouldn't end up the same species.

Ask /sci/. I'm sure they'd know better than me or anyone else here.

>>1618268
I've heard that the abos evolved separately from the rest of humanity but I don't know whether that's true

>>1620384
Everyone has evolved separately to some extent, but Abos aren't any more isolated than a lot of other groups. There were migrations from India to Australia just a few thousand years ago.

>>1618451
>So why not

>A compromised version of the Out-of-Africa hypothesis emphasizes the African origin of most human populations but allows for the possibility of minor local contributions (Model B).

The lack of neanderthal mitochondrial lines and y-chromosomes in modern humans.

http://www.livescience.com/54359-neanderthal-y-chromosome-caused-miscarriages.html