Once upon a time, our species of humans – homo sapiens were not the only ones to walk the earth. The homo genome has been found in multiple subspecies and the estimations on how many other human species there were changes with new evidence found. But there is an accepted 9 to 12 subspecies of humans most archaeologists and scientists agree on. They are included but not limited to homo habilis, homo Erectus, Denisovans, Neanderthals, and homo Rhodesians. So how did homo sapiens survive where all others failed, and what happened to all our homo-genome cousins?