Humans and Neanderthals Interbred 47,000 Years Ago Neuroscience NewsOldest Human Genomes Reveal How a Small Group Burst Out of Africa The New York TimesOldest human DNA reveals lost branch of the human family tree CNNNeandertal genes in people today came from hook-ups around 47,000 years ago Science News MagazineScientists pinpoint when humans had babies with Neanderthals The Washington Post