\[ **BT: [[life#behaviour related to reproduction]] | [[life#the behaviour of animals in groups]]** ]
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# same-sex sexual behaviour
[[The existence of ‘homosexual’ and ‘heterosexual’ as clear, specific identities is a very recent development. Furthermore, it is very heavily Anglosphere-based.]][^1]
- see also: [[queer|queer*]]
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## theories and philosophies re. the existence of same-sex sexual behaviour
### same-sex sexual behaviour is neither unusual nor rare
[[Same-sex sexual behaviour—and other ‘non-reproductive’ sexual behaviour—has been documented for as long as humans have been writing about animals (literally thousands of years).]][^2]
[[Same-sex sexual behaviour has been recorded in over 1,500 species and across most major clades.]][^3]
- see also: [[#some same-sex sexual behaviour recorded within the non-human animal kingdom]]
### the problem of human research biases
[[Accurately measuring human sexual behaviours is fraught with ethical and practical problems.]][^4]
[[Researchers have a tendency to assume that the (fitness) cost of same-sex sexual behaviour must be high.]][^5]
[[Due to the focus on reproduction—the production of progeny—when considering sexual behaviour, scientists historically shied away from questioning the purpose of clearly non-reproductive sexual activities (e.g. same-sex sexual behaviour).]][^6]
[[During the 2010s, the question of non-human same-sex sexual behaviour ‘has consolidated as a queer subject of inquiry in the context of growing concerns about how to account for agency beyond identity forms.’]][^7]
### specific theories and philosophies
#### prison effect
[[Prison effect posits that individuals only engage in same-sex when the opportunity to mate with different sexes is removed. It is named after the so-called ‘situational homosexuality’ perceived to occur in gaols.]][^16]
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## same-sex sexual behaviour and the human animal
[[@fubroshi tweeted, ‘my hot and controversial take of the evening is that sometimes calling a bottom daddy is very hot’.]][^8]
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## same-sex sexual behaviour recorded within the (non-human) animal kingdom
[[Although animals very clearly (and not infrequently) engage in same-sex sexual behaviour, calling that behaviour ‘gay’ really isn’t valid.]][^9]
##### birds
###### *Anser caerulescens* (snow geese)
[[Female–female pairs of snow geese have been observed raising their young together. Male–male snow geese mounting has also been observed.]][^10]
##### Insects
###### *Teleogryllus oceanicus* (field crickets)
[[Male crickets frequently court each other; this includes the courtship song, courtship posturing, and mounting one another.]][^11]
##### Molluscs
###### *Crepidula fornicata* (slipper limpets)
[[Smaller, more mobile slipper limpet (Crepidula fornicata) males join aggregations of larger animals to permanently associate and mate with. When given a choice, a substantial minority of males choose to associate with other males.]][^12]
##### Reptiles
###### *Thamnophis* (Genus)
[[Garter snake mating often occurs in large balls of males attempting to copulate with a single focal snake; sometimes this is a receptive female, sometimes it is a male snake releasing similar receptive pheromones.]][^13]
[^1]: Letitia Anne Peplau and Linda D. Garnets, ‘[[Peplau and Garnets, ‘New Paradigm for Understanding Women’s Sexuality and Sexual Orientation’, 2000|A New Paradigm for Understanding Women’s Sexuality and Sexual Orientation]]’, *Journal of Social Issues*, vol. 56, no. 6 (2000), p. 336, [https://doi.org/10.1111/0022-4537.00169](https://doi.org/10.1111/0022-4537.00169).
[^2]: Susan McHugh, ‘[[sources/McHugh, ‘Queer (And) Animal Theories’, 2009|Queer (And) Animal Theories]]’, *GLQ: A Journal of Lesbian and Gay Studies*, vol. 15, no. 1 (2009), p. 154, https://doi.org/10.1215/10642684-2008-022.
[^3]: Julia D. Monk et al., ‘[[Monk et al, ‘An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals’, 2019|An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals]]’, *Nature Ecology & Evolution*, vol. 3, no. 2 (2019), p. 1622, https://doi.org/10.1038/s41559-019-1019-7.
[^4]: Julia D. Monk et al., ‘[[Monk et al, ‘An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals’, 2019|An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals]]’, *Nature Ecology & Evolution*, vol. 3, no. 12 (2019), p. 1623, https://doi.org/10.1038/s41559-019-1019-7.
[^5]: Julia D. Monk et al., ‘[[Monk et al, ‘An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals’, 2019|An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals]]’, *Nature Ecology & Evolution*, vol. 3, no. 2 (2019), p. 1622, https://doi.org/10.1038/s41559-019-1019-7.
[^6]: Susan McHugh, ‘[[sources/McHugh, ‘Queer (And) Animal Theories’, 2009|Queer (And) Animal Theories]]’, *GLQ: A Journal of Lesbian and Gay Studies*, vol. 15, no. 1 (2009), p. 154, https://doi.org/10.1215/10642684-2008-022.
[^7]: Susan McHugh, ‘[[McHugh. ‘Queer (and) Animal Theories’, 2009|Queer (and) Animal Theories]]’, *GLQ: A Journal of Lesbian and Gay Studies*, vol. 15, no. 1 (2009), pp. 153–154, https://doi.org/10.1215/10642684-2008-022.
[^8]: @fubroshi \[pseud.], ‘my hot and controversial take of the evening…’, *Twitter*, 9 November 2022 (11:07 am), https://x.com/fubroshi/status/1590133921038991360.
[^9]: Susan McHugh, ‘[[sources/McHugh, ‘Queer (And) Animal Theories’, 2009|Queer (And) Animal Theories]]’, *GLQ: A Journal of Lesbian and Gay Studies*, vol. 15, no. 1 (2009), p. 155, https://doi.org/10.1215/10642684-2008-022.
[^10]: Julia D. Monk et al., ‘[[Monk et al, ‘An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals’, 2019|An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals]]’, *Nature Ecology & Evolution*, vol. 3, no. 2 (2019), p. 1625, https://doi.org/10.1038/s41559-019-1019-7.
[^11]: Julia D. Monk et al., ‘[[Monk et al, ‘An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals’, 2019|An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals]]’, *Nature Ecology & Evolution*, vol. 3, no. 2 (2019), p. 1625, https://doi.org/10.1038/s41559-019-1019-7.
[^12]: Julia D. Monk et al., ‘[[Monk et al, ‘An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals’, 2019|An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals]]’, *Nature Ecology & Evolution*, vol. 3, no. 2 (2019), p. 1625, https://doi.org/10.1038/s41559-019-1019-7.
[^13]: Julia D. Monk et al., ‘[[Monk et al, ‘An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals’, 2019|An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals]]’, *Nature Ecology & Evolution*, vol. 3, no. 2 (2019), p. 1625, https://doi.org/10.1038/s41559-019-1019-7.