In some troops up to one quarter of the females form such bonds, which vary in duration from a few days to a few weeks. An evolutionary advantage is harder to theorize for female Japanese macaques, which don't seem to use gay sex to form alliances, to get parenting help, as an expression of dominance or submission, or because opposite sex partners are scarce. The mounted female arches her back and holds her tail to one side to facilitate their sexual interaction. Please enter your name here. All these species might be best described as "bisexual".
It takes two parents working together to rear a chick successfully, and doing so repeatedly means that the parents can hone their skills together.
10 animal species that show how being gay is natural
The World's Catsvol. For instance, homosexuality in animals was cited by the American Psychiatric Association and other groups in their amici curiae brief to the United States Supreme Court in Lawrence v. Males also swing both ways, so to speak, although with less frequency. One is, of course, humans. Views Read View source View history. And once a female forms a pair-bond, the species' tendency towards monogamy means it becomes life-long. Retrieved 11 September
Male bonnet macaquessimilar to the youthful ones pictured, "give each other hand-jobs and sometimes eat the resulting semen "  although using "hand-job" can be seen as overly anthropomorphic. Writing in Scientific American inhe described pairs of female bonobos rubbing their genitals together, and " emitting grins and squeals that probably reflect orgasmic experiences ". It is interesting to note how the strong rejection of homosexuality by most societies throughout history has disadvantaged the emergence of a very different reality. If two bonobos approach a cardboard box thrown into their enclosure, they will briefly mount each other before playing with the box. The pictured squid is not O.