Modern humans may have picked up key genes from extinct relatives

Naturenews has published a very interesting article on the state of current research into what modern human DNA owes to the Neanderthals and the extinct Siberian Denisova non-homo-sapiens population. According to DNA research, there has not only been interbreeding with Neanderthals, but also with Denisovans. Read the full story on the naturenews website.