It's already been well established that early humans had Bunga-Bunga parties with their closest semi-human relatives. But scientists are just now discovering what came from those relations—a pathogen-killing immune response that persists to this day.
More » Source: http://feeds.gawker.com/~r/gizmodo/full/~3/fD3YMbnSDhg/you-can-thank-human+neanderthal-relations-for-your-strong-immune-system
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