Faasino i le vaega o loo i lalo ma tali le fesili mulimuli ane i le gagana lava lea e tasi e pei o le vaega:  O le amataga o le taua na avea o se mea na faateʻia ai Goodall, o lē na manatu muamua o chimpanzees, e ui lava e tutusa ma tagata, "e sili atu ona 'lelei'" i a latou amioga. I le 1975, na iloa ai e Goodall le fasiotia o pepe e se fafine maualuluga i le nuu, ma na faaalia ai iā te ia le "itu pogisa" o amioga a chimpanzees. Na matuā faateʻia o ia i lenei faaaliga; i lana tusi e manatua ai mea na tutupu, Through a Window: My Thirty Years with the Chimpanzees of Gombe, na ia tusi ai:  Fesili: O le ā le igoa o lana tusi?
E Ala Mai i se Faamalama: O Oʻu Tausaga e Tolusefulu ma Chimpanzees o Gombe