Denisovans, A Mysterious Kind Of Ancient Humans, Are Traced to Tibet
Until now, the only Denisovan remains came from a cave in Siberia. The new find is "much more complete," one expert says.
Denisovan
Itchy Eyes? Sneezing? Maybe Blame That Allergy On Neanderthals
At least three genes that predispose some of us to hay fever and other allergies came from Neanderthal DNA, scientists say. The genes very likely boosted the immunity of our early ancestors.