School of Sociology and Anthropology, Sun Yat-sen University, Guangzhou, Guangdong, China.
Instituto de Neuroetologia, Universidad Veracruzana, CP 91190, Xalapa, Veracruz, Mexico.
Arch Sex Behav. 2018 May;47(4):857-861. doi: 10.1007/s10508-018-1177-8. Epub 2018 Mar 13.
Homosexual behavior is defined as genital contact or genital manipulation between same-sex individuals. In nonhuman primates, it may regulate social relationships by serving as a means of reconciliation, tension alleviation, or alliance formation. Grappling is a rare and complex behavior, which most frequently occurs between same-sex individuals of the genus Ateles and can include mutual manipulation of the genitalia. Here we report three cases of penile-anal intromission during grappling between wild male spider monkeys living in the natural protected area of Otoch Ma'ax Yetel Kooh, Mexico. In all the observed cases, the same adult male was the actor. To our knowledge, this is the first report of penile-anal intromission between males in any New World primate species.
同性性行为被定义为同性个体之间的生殖器接触或生殖器操作。在非人类灵长类动物中，它可能通过作为和解、缓解紧张或建立联盟的手段来调节社会关系。纠缠是一种罕见而复杂的行为，最常发生在同种属的雄性狨猴之间，可能包括对生殖器的相互操作。在这里，我们报告了三例生活在墨西哥 otoch Ma'ax Yetel Kooh 自然保护区的野生雄性蜘蛛猴在纠缠过程中发生阴茎-肛门插入的情况。在所有观察到的病例中，同一成年雄性都是行为的发起者。据我们所知，这是首例在任何新世界灵长类动物中报告的雄性之间的阴茎-肛门插入行为。
