Sex with Neanderthals Made Us Stronger : Discovery News
Mating with Neanderthals and another group of extinct hominids, Denisovans, strengthened the human immune system and left behind evidence in the DNA of people today, according to new research.
http://news.discovery.com/human/neanderthals-interbreeding-humans-110825.html
“Because archaic humans had lived in Asia and Europe for hundreds of thousands of years before the modern humans arrived, their HLA alleles almost certainly were adapted to the local infections and in this way further invigorated the immune systems of the recent modern migrants,” Parham said.
