Neanderthals and Denisovans Lived (and Mated) in This Siberian Cave

Neanderthals and Denisovans Lived (and Mated) in This Siberian Cave. Overview of a few recent studies, creating a timeline of the habitation of the Denisova Cave. Artifacts dating 50,000 to 35,000 years ago hint at habitation by modern humans. There's no evidence yet of cohabitation.