So we're part Neanderthal. What now?

So now we know: Many, if not most, people alive today have some Neanderthal ancestry.

This finding, which comes from analysis of the Neanderthal genome, has taken many experts by surprise.

It tells us there was some mating between modern humans - our own lineage - and the Neanderthals before the latter went extinct some 24,000 years ago.

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