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(Excerpt from article at ArsTechnica...)

"It's been a busy year in research on recent human ancestry. Back in the spring, scientists completed a draft of the Neanderthal genome, which provided clear evidence that these now-extinct humans left some of their genes behind by interbreeding with some human ancestors. A bit earlier in the year, DNA sequencing revealed an even larger surprise: there seems to have been another population of premodern humans present in Asia that were genetically distinct from modern humans and Neanderthals. Now, the team behind both of these discoveries is back with a draft genome of this population that suggests it was genetically distinct from both humans and Neanderthals, and a single tooth that suggests it was physically distinct. And that it also interbred with the ancestors of a modern human population..."

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