User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4640052-20120909221547/@comment-5043481-20120915204924

Look at our own history. We humans have about 5% neanderthal DNA (and by that I mean the stuff that matters in telling who is who, rather than the basic protines and stuff which mean we share 50% with a banana). This means we must have interbred with them.