Denisovan-related ancestry in East Asians is about a twenty-fifth of that seen in New Guineans—it comprises about 0.2 percent of East Asians’ genomes, rising to up to 0.3–0.6 percent in parts of South Asia.20 We have not yet been able to determine if the Denisovan-related ancestry in mainland Asia and the islands off Southeast Asia comes from the same archaic population or from different ones.
