Hominini is the tribe of Homininae that comprises Humans ( Homo ) , and two species of the genus Pan ( the Common Chimpanzee and the Bonobo ) , their ancestors , and the extinct lineages of their common ancestor . Hominini is the tribe of Homininae that comprises Humans ( Homo ) , and two species of the genus Pan ( the Common Chimpanzee and the Bonobo ) , their ancestors , and the extinct lineages of their common ancestor ( but see the discussion below for alternative vies ) .