If you’re irritated by the morning people in your life, you might have Neanderthals to blame for their existence, at least a little bit. New research suggests that our hominin relatives possessed genetic variations that predisposed them to waking up early and that they passed on these genes to our Homo sapiens…
A sweeping analysis of European and Asian genomes over the last 40,000 years reveals when and how some genetic exchange occurred between Homo sapiens and our closest cousins, Homo neanderthalensis. It also shows how the Neanderthals’ genetic footprint depended on later exchanges between members of our own species.
