Other members of this tribe are human ( the only living member of the genus Homo ) , bonobo ( genus Pan ) , and chimpanzee ( genus Pan ) ; their ancestors ; and the extinct line of their common ancestor . Hominini currently comprises the extant species human ( the only living member of the genus Homo ) , bonobo ( genus Pan ) , and chimpanzee ( genus Pan ) ; their ancestors ; and the extinct lineages of their common ancestor .