- The results of a new analysis of fossilized hominin teeth from 4 individuals suggest that an unknown species of human was roaming parts of northern China between 60,000 and 120,000 years ago. Alternatively, the individuals could be the result of interbreeding between two species. http://www.bbc.com/earth/story/20150122-is-this-a-new-species-of-human 3 comments history