Researcher daniel haun at the max planck institute for evolutionary anthropology in leipzig , germany and his colleagues investigated orangutans , gorillas , bonobos , chimpanzees and humans .

德国莱比锡普朗克演化人类学研究所研究人员丹尼尔焕和同事们分别对猩猩、大猩猩、倭黑猩猩、黑猩猩和人类进行了研究。