" For a century the Neanderthal people have worn a stigma of hunched brutish grunting cavemen. Facial reconstructions of their skulls show them to look not exactly like us, and not exactly pretty. But beauty is a very subjective matter, and just because you don’t fancy them doesn’t mean that your ancestors didn’t. They definitely had sex with them. "

― Adam Rutherford , A Brief History of Everyone Who Ever Lived: The Stories in Our Genes