Interbreeding around 60,000 years ago (green arrow) accounts for Neanderthal DNA in modern humans; human DNA in the Neanderthal genome likely came about due to earlier interbreeding (red arrow).© ILAN GRONAU
Neanderthals diverged from modern humans at least 430,000 years ago. Research in the last decade has estimated that the two hominid groups interbred multiple times in the last 60,000 years, during encounters in the Middle East and, later, in Eastern Europe. But a study published in Nature on Wednesday (February 17) has provided evidence that humans also interbred with Neanderthals 40 millennia previously.
“An early modern human population left Africa much earlier than had been shown before,” study coauthor Sergi Castellano of Germany’s Max Planck Institute for Evolutionary Anthropology told The Guardian. These humans “met with Neanderthals, possibly those moving from Europe towards the East, some time around 100,000 years ago.”
To produce this estimate, the researchers reanalyzed the genome of a female Neanderthal who ...