Did Neanderthals die out before modern humans arrived in Europe?
DNA study confirms existence of Bigfoot. Really?
Humans bred with Neanderthals after leaving Africa
Denisovan DNA shows link with modern humans
Humans didn't breed with Neanderthals
Neanderthal 'sister species' interbred with us
More people have Denisovan genes than thought
Ancient humans interbred with other species
Non-Africans really are part-Neanderthal, says team
Neanderthal genome sequenced – and they interbred with us