Sexual selection in scaled reptiles lizards snakes side-blotched lizard Crocodilians Tuatara. However, the witness of a homosexual mount by a silverback did not always result in aggressive intervention, e. Consepts of Sexual Orientation. The Scientific Fascination with Queer Animals". Since female homosexual behavior has also been observed in the Bwindi Uganda population of mountain gorillas Robbins, unpublished datait also does not constitute a population-specific tradition as has been argued for genital rubbing in female orangutans [ 47 ].
Mathew Shurka survived the treatment but spent years trying to shake thoughts of suicide.
List of animals displaying homosexual behavior
She may then proceed to mount the other female, during which the mounting female gently grasps the mounted female's dorsal neck fur in her jaws while thrusting. Studies suggest that about 1, animal species are known to practice same-sex coupling - from insects, to fish, birds and mammals. Recent observations of homosexual behavior in male spider monkeys adds to our knowledge of these behaviors and may help us answer questions about the evolutionary functions homosexual behaviors may play, as well as allow us to consider if other animals have sexual orientations similar to the identities that humans construct. In Hanuman langurs, only 7. The Merck Manual of Veterinary Medicine appears to consider homosexuality among sheep as a routine occurrence and an issue to be dealt with as a problem of animal husbandry. Among the primate orderhomosexual behavior is most frequently observed in bonobos.
Wikipedia articles needing page number citations from September Dynamic lists. Social grease for females? Bonobos show that "sexual behaviour" can be about more than reproduction, says Zuk, and that includes homosexual behaviour. The Journal of Comparative Neurology. The Layson albatross, which nests in Hawaii, is known for its large number of homosexual partnerships. More systematic studies collecting additional information and testing alternative hypothesis will help illuminate a possible adaptive function. Some primate studies have generated empirical support for this hypothesis [ 62129 ], whereas others have not [ 3031 ].