As anatomically modern Homo sapiens migrated out of Africa and around the rest of the world, they met and interbred with at least four different hominin species, according to new research from the University of Adelaide, Australia. Strikingly, of these hominins, only Neanderthals and Denisovans are currently known; the others remain unnamed and have only been detected as traces of DNA surviving in different modern populations. Reconstruction of Homo...
