http://www.newscientist.com/article/dn23240-the-father-of-all-men-is-340000-years-old.h... ancestral tree is much more tangled than the simple lines shown up until recently. There were four forms which included H. sapiens: the others were the Nanderthals, the denosivans, and the hobbits all existing at the same time. A tree of human life may be just as bush-like as the bush of all evolution seems to be.