Nyora ndima pfupi yenyaya iri pamusoro penyaya inotevera:  MunhuX anodzidzisa chimpanzi chaMunhuY
Chokwadi, heino ndima pfupi: Thompson anodzidzisa chimpanzee chaKimberlie kushandisa mutauro wemasaini nokuti anoda kubatsira uye anoda mhuka. Anopedza maawa akawanda zuva rimwe nerimwe achidzidzisa shimpanzi zviratidzo zvokutanga zvemashoko akadai sokuti "zvokudya", "mvura", uye "imba yokugezera".