![Homo Erectus [1200x675 - 148KB]](https://pic8.co/sh/SWW2ud.jpg){kind=link}
Human evolution was multi-regional. The whole ‘Out of Africa’ myth has its roots in the mainstream academic campaign in the 1990’s to remove the concept of Race. When I did my degree they all spent a lot of time on the ‘Out of Africa’ thing but it’s been completely disproved by genetics. Mainstream still hold on to it.
Got any sauce for that? (not doubting you, I'd just like to read up on it further)
I believe is refering to this study on west africans having 2 - 19% of dna from an archaic homoninthat diverged from homo sapiens line 1 or 2 million years ago.
https://advances.sciencemag.org/content/6/7/eaax5097.full
There’s also some reason to believe that the west african/bantu population as well as the east african population (two genetically distinguishable groups) are less “pure” african than hunter gatherer populations like the Khoisan, the pygmies, and the hadza
The first two groups (most africans) have mostly “E” y-chromosomes types which are believed by some to have come from introgressions from eurasia after splitting off from type “D”. This would mean a “back to africa” in terms of their paternal dna. Hunter gatherers have type A and B y chromosomes.
Also even the maternal lineage of these two groups may be from eurasia. The west african/bantu and east african groups have a high frequency of mitochondrial dna type L3 as opposed to L0, L1, and L2 types that are more common in hunter gatherer groups.
https://www.biorxiv.org/content/10.1101/233502v1
Most of human lineage is common to within the last 150 to 300 thousand years, according to most anthropologists. But eurasians et al. have significant admixture from neanderthals and /or denisovans which diverged 1 or 2 million years ago. So our earliest common ancestor may have existed 2 million years ago or more. Our latest common ancestor maybe only 150 thousand years ago. Its not clear cut at all at this stage.
Interesting about the y chromosomes and mtDNA. I was not aware of that, but it would basically support the notion eurasians did indeed have significant input into Bantu populations which seemingly began farming only relatively recently. I'm curious if the same pattern appears in other groups of people with similar features such as those living on islands in the Indian ocean. I am also curious if this ghost DNA exists in khoisan or pygmy groups.
We shall see if the out of africa idea holds up as more information is gathered on this subject, personally I don't think it will, but I am fairly certain that most anthropogists will continue to support it until proof of it's untenability reaches the masses in critical mass.
Thank you for those sources, you are a class-A bro.
There were also other findings that suggests multi-regional evolution such as Dali skull in China and Morocco and genetic testing that show some Africans can have up to 20% archaic hominin DNA which set them back hundreds of thousands of years evolutionary speaking.
This is a relatively new finding, within the last several months it seems. But basically analysis of western sub saharans show "ghost" dna from an unidentified group of archaic hominids. It was present on all the subjects tested, but I believe this was only done on west subsaharans. Assuming it's in all subsaharans it would show we couldn't have come out of africa since it's not present in eurasians or amerindian populations. I'd provide a link but I'd need to google one for you which you can do easily. Robert sephr has a joutube channel and has covered this in several videos as well as a bunch of other shit you might be interested in so I'd start there.
His hypothesis is basically that cro-magnon interbred with several different groups of archaics in different regions creating what we today call races. Obvs we whites bred with neanderthals, asians bred with neanderthals and denisovians and africans who bred with neither of those groups bred with this other group, he believes it was homoerectus.
https://en.wikipedia.org/wiki/Multiregional_origin_of_modern_humans#Genetic_evidence
The entirety of Chinese academia supports multi-regional hypothesis. They have strong fossil and genetic evidence. Even architects of the 'out of africa' theory like Chris Stringer have walked it back to 'mostly out of africa'. They use to claim there was no interbreeding outside of africa. Now we know homo-sapiens bred with at least two species, neanderthals and denisovans. Meanwhile sub-saharan africans have 15% - 20% 'phantom' DNA admixture from unknown species but they dont want to talk about that very much.
(((Academia))) has been pushing the "out of Africa " narrative since the early 60s.
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