 Subsequently, analysis of the nuclear genome revealed her father to be Denisovan, but with some Neanderthal ancestry.This genome thus constitutes the first direct evidence for multiple instances of interbreeding between Neandertals and Denisovans.Researchers determined the girl’s mother was genetically closer to Western European Neanderthals than earlier Neanderthals who lived in Denisova Cave, suggesting some Neanderthals had migrated from Western Europe to Central Eurasia tens of thousands of years before the species died out.