DNA from Extinct Human Relative May Have Shaped Modern Papuans’ Immune System
The immune systems of people who are indigenous to the island of New Guinea may be partly shaped by DNA from an extinct human species, a newly published study says.
Thousands of years ago, the ancestors of modern humans met and mated with Neandertals—and also with their close cousins and contemporaries, Denisovans. Though both Neandertals and Denisovans later went extinct (with Denisovans possibly sticking around until as recently as 15,000 years ago), billions of people around the world still carry the proof of these…