Science made easy! With pictures! Thanks to @BoraZ for the link: Neandering Genes, by Dwayne Godwin and Jorge Cham, in Scientific American MIND)…
Oh, and by the way, remember: the «as much as 4% of our genes» coming from Neandertals is only true for people of European & Asian descent. If you’re African, you should be pure Homo sapiens. Congratulations!