Dr. David Reich from Harvard Medical School and his colleagues have produced a world map of Denisovan and Neanderthal ancestry in 120 diverse populations. Their analysis proposes that Denisovan admixture into humans occurred about 100 generations after Neanderthal admixture. Neanderthal. Image credit: Trustees of the Natural History Museum, London. Dr. Reich and co-authors collected their data by comparing known Neanderthal and Denisovan gene sequences...
