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[–]jet199 3 insightful - 2 fun3 insightful - 1 fun4 insightful - 2 fun -  (0 children)

This reasoning makes my brain hurt.

Basically because they have already classified neanderthals as a separate species (for political reasons) and humans and neanderthals interbred successfully they want to change the definition of species rather than admit they made a mistake and humans and neanderthals were always just variations within one species.