Chimpanzee and Human Ancestors May Have Interbred

Chimpanzee and Human Ancestors May Have Interbred
(Nature)

The evolutionary split between humans and our nearest evolutionary cousins, chimpanzees, may have occurred more recently than we thought, according to a new comparison of the respective genetic sequences. What’s more, it might have been a messy divorce rather than a clean break—leading to the controversial theory that our two sets of ancestors may have interbred many thousands of years after first parting company.