Sources: PloS One [abstract], The British Museum
quote: In that light, the recent genetic research suggest modern man to be highly diverse, consisting of a mixture of DNA from different hominid species.
quote: However Homo Sapiens Sapiens is a species and Homo Sapiens Neandarthalus is a second species. Genetic traces indicate that H. S. Sapiens+H. S. Neandarthalus crosses produced fertile offspring that grew up and bred with their full blood neighbors.