New evidence would seem to show that our human ancestors were not responsible for the disappearance of the Neanderthals after all:
An international team of researchers has concluded that most of the Neanderthals in Europe died off about 50,000 years ago — some 10,000 years before the arrival of modern humans.
It has generally been assumed that modern humans caused the demise of the Neanderthals, either by killing them directly or by simply out-competing them, claiming the best hunting territories, or surviving more effectively under Ice Age conditions. This new study suggests that none of those scenarios is correct.
[…] On that basis, they concluded that most of the Neanderthals in Europe died out as early as 50,000 years ago. Just a small group survived and had managed to spread out through central and western Europe before modern humans showed up.
[…] It has also been established recently that that although all non-Africans carry a small amount of Neanderthal DNA, Asians have just as much of it as Europeans. This would seem to indicate that any interbreeding took place when modern humans first left Africa, and that the people who migrated from the Middle East tens of thousands of years later had little or no additional contact with Neanderthals once they reached Europe.
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