RE: The Out of Africa Crowd May Shit A Brick
December 27, 2010 at 6:43 pm
(This post was last modified: December 27, 2010 at 6:48 pm by Anomalocaris.)
(December 27, 2010 at 6:28 pm)Minimalist Wrote: OOA has set too many barriers for itself.
There shalt be no cross-breeding between HNS and HSS. But there was.
Homo Erectus could not have spread across the planet. But they did.
The Toba Volcano pushed early man to the brink of extinction in 75,000 BC. But did not bother HNS or numerous mega fauna species.
OOA is a lot like a religion. You have to hold your nose too much when discussing it.
Now that the Neanderthal genome project has been done we desperately need Homo Erectus DNA for examination.
That there should be no cross breeding between HNS and HSS is an unnecessary barrier, and genetic contribution of AHS and HNS has been shown to be small. That Homo Erectus has spread across the planet had been known for certain since the 1920s. We don't have fossil evidence for the HSS Toba bottle neck, only genetic evidence. We simply don't have enough genetic evidence to conclude the same for HNS. The Toba genetic bottle neck is not crucial to out of Africa. It happened some 15,000 years prior to the postulated date of the out of africa migration. OOA is not like a religion. It's a theory whose challengers have succeeded in peripheral skirmishes with it, but has not seriously challenged its core. If one could show that two different major population of modern humans living outside of Africa derived most of their respective heretic heritage from a common ancestor who lived much more than 70,000 years ago, that will put a nail in the coffin of OOA. But no one has. If one could provide genetic evidence that modern humans in Africa flowed in from outside, then that would put a nail in the coffin of out of Africa. No one has. All people has shown is there might have been some modest interbreeding events between ancestors of modern humans, who most likely came out of Africa some 50-60 KY ago, and some indigenous population in Siberia and China. But no one has provided evidence that this interbreeding mattered a lot as far as the genetic or behavior makeup of the resulting population.
