Modern humans interbred with Denisovans twice in history

(Cell Press) Modern humans co-existed and interbred not only with Neanderthals, but also with another species of archaic humans, the mysterious Denisovans. Research published March 15 in Cell describes how, while developing a new genome-analysis method for comparing whole genomes between modern human and Denisovan populations, researchers unexpectedly discovered two distinct episodes of Denisovan genetic intermixing, or admixing, between the two. This suggests a more diverse genetic history than previously thought between the Denisovans and modern humans.
Source: EurekAlert! - Social and Behavioral Science - Category: International Medicine & Public Health Source Type: news