According to a team of researchers at the University of California, Davis, only a very small percentage of Neanderthal DNA is present in the genomes of modern humans because, after interbreeding, natural selection removed large numbers of ‘bad’ Neanderthal gene variants. Reconstruction of a Neanderthal. Image credit: Neanderthal Museum. Neanderthals split from our African ancestors over 500,000 years ago, and lived in Europe and Central...
