Primary bone tumors are rare in modern populations, thus, finding a tumor in a fossil so old is a unique discovery. (sciencedaily.com)
When they analyzed their data, using modern population genetic theory, they came up with estimates for the whole tumor of more than 100 million coding - region mutations. (uchospitals.edu)
Comparisons to DNA from modern populations in Africa and elsewhere indicated that between 9 percent and 30 percent of Khoisan DNA today comes from an East African population that had already interbred with Eurasian people. (sciencenews.org)