This is a list of mammals for which there is documented evidence of

homosexual behavior Homosexuality is Romance (love), romantic attraction, sexual attraction, or Human sexual activity, sexual behavior between members of the same sex or gender. As a sexual orientation, homosexuality is "an enduring pattern of emotional, romant ...

. These animals have been observed practicing homosexual courtship, sexual behavior,

affection Affection or fondness is a "disposition or state of mind or body" that is often associated with a feeling or type of love. It has given rise to a number of branches of philosophy and psychology concerning emotion, disease, influence, and sta ...

, pair bonding, or parenting. Bruce Bagemihl writes that the presence of

same-sex sexual behavior Same sex may refer to: * A phrase used in the discussion of sex or gender * Gonochorism, the state of having just one of at least two distinct sexes in any one individual organism * Homosexuality, the romantic attraction, sexual attraction or sexu ...

was not officially observed on a large scale until the 1990s due to possible

observer bias Observer bias is one of the types of detection bias and is defined as any kind of systematic divergence from accurate facts during observation and the recording of data and information in studies. The definition can be further expanded upon to incl ...

caused by social attitudes towards LGBT people, which made homosexuality in animals a taboo subject.Bagemihl (1999)News-medical.net (2006) He devotes three chapters, "Two Hundred Years at Looking at Homosexual Wildlife", "Explaining (Away) Animal Homosexuality", and "Not For Breeding Only" in his 1999 book ''Biological Exuberance'' to the "documentation of systematic prejudices" where he notes "the ''present ignorance'' of biology lies precisely in its single-minded attempt to find reproductive (or other) "explanations" for homosexuality, transgender, and non-procreative and alternative heterosexualities.Bagemihl (1999) page 213 Petter Bøckman, academic adviser for the '' Against Nature?'' exhibit, stated " ny researchers have described homosexuality as something altogether different from sex. They must realise that animals can have sex with who they will, when they will and without consideration to a researcher's ethical

principle A principle is a proposition or value that is a guide for behavior or evaluation. In law, it is a Legal rule, rule that has to be or usually is to be followed. It can be desirably followed, or it can be an inevitable consequence of something, suc ...

s". Homosexual behavior is found amongst social birds and

mammal Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or ...

s, particularly the sea mammals and the

primates Primates are a diverse order of mammals. They are divided into the strepsirrhines, which include the lemurs, galagos, and lorisids, and the haplorhines, which include the tarsiers and the simians (monkeys and apes, the latter including huma ...

. Animal sexual behavior takes many different forms, even within the same species and the motivations for and implications of their behaviors have yet to be fully understood. Bagemihl's research shows that homosexual behavior, not necessarily sexual activity, has been documented in about 500 species as of 1999, ranging from

to gut worms.Harrold (1999) Homosexuality in animals is controversial with some

social conservatives Social conservatism is a political philosophy and variety of conservatism which places emphasis on traditional power structures over social pluralism. Social conservatives organize in favor of duty, traditional values and social instituti ...

because it asserts the naturalness of homosexuality in humans, while others counter that it has no implications and is nonsensical to equate animal behavior to morality.Solimeo (2004)Solimeo (2004b) Animal preference and motivation is inferred from behavior, thus homosexual behavior has been given a number of terms over the years. Modern research applies the term ''homosexuality'' to all sexual behavior (

copulation Sexual intercourse (or coitus or copulation) is a sexual activity typically involving the insertion and thrusting of the penis into the vagina for sexual pleasure or reproduction.Sexual intercourse most commonly means penile–vaginal penetrat ...

, genital stimulation, mating games and sexual

display behavior Display behaviour is a set of ritualized behaviours that enable an animal to communicate to other animals (typically of the same species) about specific stimuli. These ritualized behaviours can be visual however many animals depend on a mixture ...

) between animals of the same sex. This is a list of some mammals that have been recorded engaging in homosexual behavior, which is part of a larger list of animals displaying homosexual behavior including

birds Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweigh ...

, insects, fish, etc.

Selected images

Image:Macaques à bonnet petits.jpg, Male bonnet macaques, similar 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 Anthropomorphism is the attribution of human traits, emotions, or intentions to non-human entities. It is considered to be an innate tendency of human psychology. Personification is the related attribution of human form and characteristics t ...

. Image:Uganda-Kob.jpg, Ugandan kob - "Female

kob The kob (''Kobus kob'') is an antelope found across Central Africa and parts of West Africa and East Africa. Together with the closely related reedbucks, waterbucks, lechwe, Nile lechwe, and puku, it forms the Reduncinae tribe. Found along the ...

perform oral sex on each other and even stroke each other's

vulvas The vulva (plural: vulvas or vulvae; derived from Latin for wrapper or covering) consists of the external female sex organs. The vulva includes the mons pubis (or mons veneris), labia majora, labia minora, clitoris, vestibular bulbs, vulval ...

with their forelegs. They may exhibit

urolagnia Urolagnia (also urophilia, and, more colloquially, a golden shower or watersports) associates sexual excitement with the sight or thought of urine or urination, and may also refer to such behaviours or acts. It is a paraphilia. The term has o ...

during

sex Sex is the trait that determines whether a sexually reproducing animal or plant produces male or female gametes. Male plants and animals produce smaller mobile gametes (spermatozoa, sperm, pollen), while females produce larger ones (ova, oft ...

, one female will urinate while the other sticks her nose in the stream."Imaginova (2007e) Image:Spotted hyena2.jpg, "Elevated levels of testosterone in utero" increases aggressiveness and both male and female

spotted hyena The spotted hyena (''Crocuta crocuta''), also known as the laughing hyena, is a hyena species, currently classed as the sole extant member of the genus ''Crocuta'', native to sub-Saharan Africa. It is listed as being of least concern by the IUC ...

s mount submissive same-sex members who likely have lower levels of testosterone from their mothers.Forger (1998)Holekamp (2003)Wilson (Sexing the Hyena) Image:Graywhale MMC.jpg, In "slip-and-slide"

orgies In modern usage, an orgy is a sex party consisting of at least five members where guests freely engage in open and unrestrained sexual activity or group sex. Swingers' parties do not always conform to this designation, because at many swin ...

, groups of male

grey whale The gray whale (''Eschrichtius robustus''), also known as the grey whale,Britannica Micro.: v. IV, p. 693. gray back whale, Pacific gray whale, Korean gray whale, or California gray whale, is a baleen whale that migrates between feeding and bree ...

s, roll in the ocean rubbing their bellies against each other so that their genitals are touching.Imaginova (2007h)

List

* African buffaloBagemihl (1999) page 413 * African elephantBagemihl (1999) page 427 * Agile wallabyBagemihl (1999) page 449 * Amazon river dolphinBagemihl (1999) page 339 * American bison *

Antelope The term antelope is used to refer to many species of even-toed ruminant that are indigenous to various regions in Africa and Eurasia. Antelope comprise a wastebasket taxon defined as any of numerous Old World grazing and browsing hoofed mammals ...

* Asian elephantBagemihl (1999) page 432 *

Asiatic mouflon The mouflon (''Ovis gmelini'') is a wild sheep native to Cyprus, the Caspian region from eastern Turkey, Armenia, Azerbaijan, and Iran. It is thought to be the ancestor of all modern domestic sheep breeds. Taxonomy ''Ovis gmelini'' was the scie ...

Bagemihl (1999) pages 405, 690 *

Atlantic spotted dolphin The Atlantic spotted dolphin (''Stenella frontalis'') is a dolphin found in warm temperate and tropical waters of the Atlantic Ocean. Older members of the species have a very distinctive spotted coloration all over their bodies. Taxonomy The Atl ...

Australian sea lion The Australian sea lion (''Neophoca cinerea''), also known as the Australian sea-lion or Australian sealion, is a species of sea lion that is the only endemic pinniped in Australia. It is currently monotypic in the genus ''Neophoca'', with the e ...

Bagemihl (1999) page 367 * BarasinghaBagemihl (1999) page 378 * Barbary sheepBagemihl (1999) page 405 * Beluga * BharalBagemihl (1999) pages 209, 408, 690 * Bighorn sheep * Black bear * BlackbuckBagemihl (1999) page 402 * Black-footed rock wallaby * Black-tailed deer * Bonin flying fox * Bonnet macaqueBagemihl (1999) page 316 *

Bonobo The bonobo (; ''Pan paniscus''), also historically called the pygmy chimpanzee and less often the dwarf chimpanzee or gracile chimpanzee, is an endangered great ape and one of the two species making up the genus '' Pan,'' the other being the comm ...

de Waal (2001) *

Bottlenose dolphin Bottlenose dolphins are aquatic mammals in the genus ''Tursiops.'' They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. Molecular studies show the genus definitively contains two species: the common ...

Bowhead whale The bowhead whale (''Balaena mysticetus'') is a species of baleen whale belonging to the family Balaenidae and the only living representative of the genus ''Balaena''. They are the only baleen whale endemic to the Arctic and subarctic waters, ...

* Brazilian guinea pigBagemihl (1999) page 467 * Bridled dolphin * Brown bearBagemihl (1999) page 441 *

Brown capuchin The tufted capuchin (''Sapajus apella''), also known as brown capuchin, black-capped capuchin, or pin monkey is a New World primate from South America and the Caribbean islands of Trinidad and Margarita. As traditionally defined, it is one of t ...

Bagemihl (1999) page 334 *

Brown long-eared bat The brown long-eared bat or common long-eared bat (''Plecotus auritus'') is a small Eurasian insectivorous bat. It has distinctive ears, long and with a distinctive fold. It is extremely similar to the much rarer grey long-eared bat which was on ...

Bagemihl (1999) page 473 * Brown ratBagemihl (1999) page 469 * Buffalo *

Caribou Reindeer (in North American English, known as caribou if wild and ''reindeer'' if domesticated) are deer in the genus ''Rangifer''. For the last few decades, reindeer were assigned to one species, ''Rangifer tarandus'', with about 10 subspe ...

Bagemihl (1999) pages 388,389 * Cat (domestic)Bagemihl (1999) pages 81, 88 * Cattle (domestic)Bagemihl (1999) pages 81, 82, 89 * Chacma baboonPoiani (2010) page 52 * Cheetah *

Chimpanzee The chimpanzee (''Pan troglodytes''), also known as simply the chimp, is a species of great ape native to the forest and savannah of tropical Africa. It has four confirmed subspecies and a fifth proposed subspecies. When its close relative th ...

Bagemihl (1999) pages 276–279 * ChitalPoiani (2010) page 51 * Collared peccaryBagemihl (1999) pages 422–425 * Commerson's dolphin * Common brushtail possumBagemihl (1999) page 457 * Common dolphin * Common marmoset *

Common pipistrelle The common pipistrelle (''Pipistrellus pipistrellus'') is a small pipistrelle microbat whose very large range extends across most of Europe, North Africa, South Asia, and may extend into Korea. It is one of the most common bat species in the Brit ...

Bagemihl (1999) page 475 *

Common tree shrew The common treeshrew (''Tupaia glis'') is a small mammal in the treeshrew family Tupaiidae, and is native to Thailand, Malaysia, and Indonesia. It has been listed as Least Concern by IUCN as it remains common and displays some adaptability to ong ...

Bagemihl (1999) page 471 * Cotton-top tamarinBagemihl (1999) page 333 *

Crab-eating macaque The crab-eating macaque (''Macaca fascicularis''), also known as the long-tailed macaque and referred to as the cynomolgus monkey in laboratories, is a cercopithecine primate native to Southeast Asia. A species of macaque, the crab-eating macaqu ...

Crested black macaque The Celebes crested macaque (''Macaca nigra''), also known as the crested black macaque, Sulawesi crested macaque, or the black ape, is an Old World monkey that lives in the Tangkoko reserve in the northeastern tip of the Indonesian island of S ...

* Dall's sheep * Daubenton's bat * Dog (domestic)Bagemihl (1999) pages 310, 314 *

Donkey The domestic donkey is a hoofed mammal in the family Equidae, the same family as the horse. It derives from the African wild ass, ''Equus africanus'', and may be classified either as a subspecies thereof, ''Equus africanus asinus'', or as a ...

Poiani (2010) page 170 * Doria's tree kangaroo * DugongBagemihl (1999) page 376 * Dwarf cavy *

Dwarf mongoose The common dwarf mongoose (''Helogale parvula'') is a mongoose species native to Angola, northern Namibia, KwaZulu-Natal in South Africa, Zambia and East Africa. It is part of the genus ''Helogale'', along with the Ethiopian dwarf mongoose. Char ...

Bagemihl (1999) pages 447–448 * Eastern cottontail rabbit * Eastern grey kangaroo *

Elk The elk (''Cervus canadensis''), also known as the wapiti, is one of the largest species within the deer family, Cervidae, and one of the largest terrestrial mammals in its native range of North America and Central and East Asia. The common ...

* Euro (a subspecies of wallaroo) * European bison * European polecat * Fallow deer * False killer whale *

Fat-tailed dunnart The fat-tailed dunnart (''Sminthopsis crassicaudata'') is a species of mouse-like marsupial of the Dasyuridae, the family that includes the little red kaluta, quolls, and the Tasmanian devil. It has an average body length of with a tail of . Ear ...

Bagemihl (1999) pages 458–460 * Fin whale *

Fox Foxes are small to medium-sized, omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull, upright, triangular ears, a pointed, slightly upturned snout, and a long bushy tail (or ''brush''). Twelve sp ...

Bagemihl (1999) pages 218, 231, 317 *

François' langur François' langur (''Trachypithecus francoisi''), also known as Francois' leaf monkey, the Tonkin leaf monkey, or the white side-burned black langur is a species of lutung and the type species of its species group. It is one of the least studied ...

* GazelleBagemihl (1999) page 391 *

Gelada baboon The gelada (''Theropithecus gelada'', am, ጭላዳ, translit=č̣əlada), sometimes called the bleeding-heart monkey or the gelada baboon, is a species of Old World monkey found only in the Ethiopian Highlands, living at elevations of above se ...

Bagemihl (1999) pages 324–330 * Goat (domestic) *

Golden monkey The golden monkey (''Cercopithecus kandti'') is a species of Old World monkey found in the Virunga volcanic mountains of Central Africa, including four national parks: Mgahinga, in south-west Uganda; Volcanoes, in north-west Rwanda; and Vi ...

Bagemihl (1999) pages 299–301 * GorillaBagemihl (1999) pages 280–284 * Grant's gazelle * Grey-headed flying fox * Grey seal * Grey squirrelBagemihl (1999) pages 461–464 *

Grey whale The gray whale (''Eschrichtius robustus''), also known as the grey whale,Britannica Micro.: v. IV, p. 693. gray back whale, Pacific gray whale, Korean gray whale, or California gray whale, is a baleen whale that migrates between feeding and bree ...

* Grey wolfBagemihl (1999) pages 231, 436–440 *

Grizzly bear The grizzly bear (''Ursus arctos horribilis''), also known as the North American brown bear or simply grizzly, is a population or subspecies of the brown bear inhabiting North America. In addition to the mainland grizzly (''Ursus arctos horri ...

* Guinea pig (domestic) *

Hamadryas baboon The hamadryas baboon (''Papio hamadryas'' ) is a species of baboon within the Old World monkey family. It is the northernmost of all the baboons, being native to the Horn of Africa and the southwestern region of the Arabian Peninsula. These re ...

* Hamster (domestic) * Hanuman langurBagemihl (1999) pages 293–298 *

Harbor porpoise The harbour porpoise (''Phocoena phocoena'') is one of eight extant species of porpoise. It is one of the smallest species of cetacean. As its name implies, it stays close to coastal areas or river estuaries, and as such, is the most familiar ...

Bagemihl (1999) page 347 * Harbor seal * Himalayan tahrBagemihl (1999) page 412 *

Hoary marmot The hoary marmot (''Marmota caligata'') is a species of marmot that inhabits the mountains of northwest North America. Hoary marmots live near the tree line on slopes with grasses and forbs to eat and rocky areas for cover. It is the largest Nor ...

Bagemihl (1999) page 465-466 * Horse (domestic)Bagemihl (1999) pages 81, 165, 205, 226, 231 * Human (see Human sexual behavior) * Indian fruit bat * Indian muntjacBagemihl (1999) page 386 * Indian rhinocerosBagemihl (1999) page 430 * Japanese macaque * JavelinaBagemihl (1999) page 422-425 *

Kangaroo rat Kangaroo rats, small mostly nocturnal rodents of genus ''Dipodomys'', are native to arid areas of western North America. The common name derives from their bipedal form. They hop in a manner similar to the much larger kangaroo, but developed thi ...

* Killer whale * KoalaBagemihl (1999) page 455-457 *

Kob The kob (''Kobus kob'') is an antelope found across Central Africa and parts of West Africa and East Africa. Together with the closely related reedbucks, waterbucks, lechwe, Nile lechwe, and puku, it forms the Reduncinae tribe. Found along the ...

Bagemihl (1999) page 397-401 * Larga seal *

Least chipmunk The least chipmunk (''Neotamias minimus'') is the smallest species of chipmunk and the most widespread in North America. Description It is the smallest species of chipmunk, measuring about in total length with a weight of . The body is gray to ...

Lechwe The lechwe, red lechwe, or southern lechwe (''Kobus leche'') is an antelope found in wetlands of south-central Africa. Range The lechwe is native to Botswana, Zambia, southeastern Democratic Republic of the Congo, northeastern Namibia, and easte ...

Lesser bushbaby Lesser bushbabies, or lesser galagos, are strepsirrhine primates of the genus ''Galago''. They are classified, along with the bushbabies (genus ''Euoticus'') and the rest of the galagos (genera ''Otolemur'', ''Galagoides'', ''Paragalago'', and ''S ...

Bagemihl (1999) page 336-338 *

Lion The lion (''Panthera leo'') is a large Felidae, cat of the genus ''Panthera'' native to Africa and India. It has a muscular, broad-chested body; short, rounded head; round ears; and a hairy tuft at the end of its tail. It is sexually dimorphi ...

Lion-tailed macaque The lion-tailed macaque (''Macaca silenus''), also known as the wanderoo, is an Old World monkey endemic to the Western Ghats of South India. Characteristics Lion-tailed macaques are covered in black fur, and have a striking gray or silver ...

* Lion tamarin * Little brown bat *

Livingstone's fruit bat Livingstone's fruit bat (''Pteropus livingstonii''), also called the Comoro flying fox, is a megabat in the genus ''Pteropus''. It is an Old World fruit bat found only in the Anjouan and Mohéli islands in the Union of the Comoros in the western I ...

* Long-eared hedgehogBagemihl (1999) pages 470–472 * Long-footed tree shrew *

Macaque The macaques () constitute a genus (''Macaca'') of gregarious Old World monkeys of the subfamily Cercopithecinae. The 23 species of macaques inhabit ranges throughout Asia, North Africa, and (in one instance) Gibraltar. Macaques are principally ...

* MarkhorBagemihl (1999) page 409 *

Marten A marten is a weasel-like mammal in the genus ''Martes'' within the subfamily Guloninae, in the family Mustelidae. They have bushy tails and large paws with partially retractile claws. The fur varies from yellowish to dark brown, depending on t ...

Bagemihl (1999) page 448 * Masked palm civet * MocoBagemihl (1999) pages 109, 469 * Mohol galago *

Moor macaque The Moor macaque (''Macaca maura'') is a macaque monkey with brown/black body fur with a pale rump patch and pink bare skin on the rump. It has ischial callosities, which are oval-shaped. It is about 50–58.5 cm long, and eats figs, bamboo ...

* MooseBagemihl (1999) pages 387–390 * Mountain goat * Mountain tree shrew * Mountain zebraBagemihl (1999) pages 418–421 * Mouse (domestic)Bagemihl (1999) pages 663, 693, 714 * Moustached tamarin * Mule deer * Musk-oxBagemihl (1999) pages 410–413 * Natterer's bat * New Zealand sea lion * Nilgiri langur *

Noctule ''Nyctalus'' is a genus of vespertilionid bats commonly known as the noctule bats. They are distributed in the temperate and subtropical areas of Europe, Asia and North Africa. There are eight species within this genus: * Birdlike noctule, ''N ...

* North American porcupineBagemihl (1999) page 472 * Northern elephant seal * Northern fur seal * Northern quoll *

Olympic marmot The Olympic marmot (''Marmota olympus'') is a rodent in the squirrel family, Sciuridae; it occurs only in the U.S. state of Washington (state), Washington, on the middle elevations of the Olympic Peninsula. The closest relatives of this species ...

Bagemihl (1999) pages 465–466 * OrangutanBagemihl (1999) pages 284–288 * Pacific striped dolphin *

Patas monkey The common patas monkey (''Erythrocebus patas''), also known as the wadi monkey or hussar monkey, is a ground-dwelling monkey distributed over semi-arid areas of West Africa, and into East Africa. Taxonomy There is some confusion surrounding ...

Bagemihl (1999) page 328 *

Pere David's deer Pere may refer to: *Pere, Hungary, a village in Borsod-Abaúj-Zemplén county * Rangimārie Te Turuki Arikirangi Rose Pere (1937–2020), Māori New Zealand educationalist and spiritual leader *Wi Pere (1837–1915), a Māori Member of Parliament i ...

* Pig (domestic)Bagemihl (1999) pages 81, 82, 225–226, 232–240 * Pig-tailed macaque * Plains zebraBagemihl (1999) page 418-421 *

Polar bear The polar bear (''Ursus maritimus'') is a hypercarnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the largest extant bear specie ...

Pretty-faced wallaby The whiptail wallaby (''Notamacropus parryi''), also known as the pretty-faced wallaby, is a species of wallaby found in eastern Australia. It is locally common from Cooktown in Queensland to near Grafton in New South Wales. Description It is ...

Proboscis monkey The proboscis monkey (''Nasalis larvatus'') or long-nosed monkey is an arboreal Old World monkey with an unusually large nose, a reddish-brown skin color and a long tail. It is endemic to the southeast Asian island of Borneo and is found mostly ...

* PronghornBagemihl (1999) pages 394–396 * Przewalski's horse * Pudú * PukuBagemihl (1999) pages 397–401 * QuokkaBagemihl (1999) page 451 *

Rabbit Rabbits, also known as bunnies or bunny rabbits, are small mammals in the family Leporidae (which also contains the hares) of the order Lagomorpha (which also contains the pikas). ''Oryctolagus cuniculus'' includes the European rabbit speci ...

Bagemihl (1999) page 81 * Raccoon * Raccoon dogBagemihl (1999) page 440 * Red deer *

Red fox The red fox (''Vulpes vulpes'') is the largest of the true foxes and one of the most widely distributed members of the Order (biology), order Carnivora, being present across the entire Northern Hemisphere including most of North America, Europe ...

Bagemihl (1999) pages 437–441 * Red kangaroo * Red-necked wallaby *

Red squirrel The red squirrel (''Sciurus vulgaris'') is a species of tree squirrel in the genus ''Sciurus'' common throughout Europe and Asia. The red squirrel is an arboreal, primarily herbivorous rodent. In Great Britain, Ireland, and in Italy numbers ...

Reeves's muntjac Reeves's muntjac (''Muntiacus reevesi''; ), also known as the Chinese muntjac, is a muntjac species found widely in southeastern China (from Gansu to Yunnan) and Taiwan. It has also been introduced in Europe, western United States and Japan. It ...

* Reindeer * Rhesus macaque *

Right whale Right whales are three species of large baleen whales of the genus ''Eubalaena'': the North Atlantic right whale (''E. glacialis''), the North Pacific right whale (''E. japonica'') and the Southern right whale (''E. australis''). They are clas ...

* Rock cavy *

Rodrigues fruit bat The Rodrigues flying fox or Rodrigues fruit bat (''Pteropus rodricensis'') is a species of bat in the family Pteropodidae, the flying foxes or fruit bats. It is endemic to Rodrigues, an island in the Indian Ocean belonging to Mauritius. Its na ...

* Roe deer * Rufous bettongBagemihl (1999) pages 453–455 * Rufous-naped tamarin * Rufous rat kangaroo *

Saddle-back tamarin The saddle-back tamarins are squirrel-sized New World monkeys from the family Callitrichidae in the genus or subgenus ''Leontocebus''. They were split from the tamarin genus ''Saguinus'' based on genetic data and on the fact that saddle-back ta ...

* Savanna baboon *

Sea otter The sea otter (''Enhydra lutris'') is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. Adult sea otters typically weigh between , making them the heaviest members of the weasel family, but among the small ...

Bagemihl (1999) pages 364–365 * Serotine bat * Sheep (domestic)Roselli (2004), Vol. 145, No. 2, pages 478–483 * SiamangBagemihl (1999) pages 289–292 * Sika deer * Slender tree shrew * Snub-nosed monkey *

Sooty mangabey The sooty mangabey (''Cercocebus atys'') is an Old World monkey found in forests from Senegal in a margin along the coast down to the Ivory Coast. Habitat and ecology The sooty mangabey is native to tropical West Africa, being found in Guinea, G ...

Sperm whale The sperm whale or cachalot (''Physeter macrocephalus'') is the largest of the toothed whales and the largest toothed predator. It is the only living member of the genus ''Physeter'' and one of three extant species in the sperm whale famil ...

* Spider monkey *

Spinifex hopping mouse The spinifex hopping mouse (''Notomys alexis''), also known as the tarkawara or tarrkawarra, occurs throughout the central and western Australian arid zones, occupying both spinifex-covered sand flats and stabilised sand dunes, and loamy mulga ...

* Spinner dolphin *

Spotted hyena The spotted hyena (''Crocuta crocuta''), also known as the laughing hyena, is a hyena species, currently classed as the sole extant member of the genus ''Crocuta'', native to sub-Saharan Africa. It is listed as being of least concern by the IUC ...

Forger (6 December 1998), Volume 375, Issue 2, Pages 333 – 343 * Spotted seal * Squirrel monkeyBagemihl (1999) pages 330–335 * Striped dolphin * Stuart's marsupial mouseBagemihl (1999) page 459 * Stumptail macaque * Swamp deer * Swamp wallaby *

Takhi Przewalski's horse (, , (Пржевальский ), ) (''Equus ferus przewalskii'' or ''Equus przewalskii''), also called the takhi, Mongolian wild horse or Dzungarian horse, is a rare and endangered horse originally native to the steppes of Ce ...

* Talapoin * Tammar wallaby *

Tasmanian devil The Tasmanian devil (''Sarcophilus harrisii'') (palawa kani: purinina) is a carnivorous marsupial of the family Dasyuridae. Until recently, it was only found on the island state of Tasmania, but it has been reintroduced to New South Wales in ...

Tibetan macaque The Tibetan macaque (''Macaca thibetana''), also known as the Chinese stump-tailed macaque or Milne-Edwards' macaque, is a macaque species found from eastern Tibet east to Guangdong and north to Shaanxi in China. It has also been reported from n ...

* Tasmanian rat kangaroo * Thinhorn sheep * Thomson's gazelle * TigerSommer (2006) * Tonkean macaque *

Tucuxi The tucuxi (''Sotalia fluviatilis''), alternatively known in Peru ''bufeo gris'' or ''bufeo negro'', is a species of freshwater dolphin found in the rivers of the Amazon basin. The word ''tucuxi'' is derived from the Tupi language word ''tuchuc ...

Bagemihl (1999) page 340 * UrialBagemihl (1999) pages 405–409 * Vampire bat *

Verreaux's sifaka Verreaux's sifaka (''Propithecus verreauxi''), or the white sifaka, is a medium-sized primate in one of the lemur families, the Indriidae. It lives in Madagascar and can be found in a variety of habitats from rainforest to dry deciduous forests ...

Bagemihl (1999) pages 366–368 * Vervet * VicunaBagemihl (1999) pages 425–426 * WalrusBagemihl (1999) pages 370–374Imaginova (2007g) * WapitiBagemihl (1999) page 231 * WarthogBagemihl (1999) page 421 * WaterbuckBagemihl (1999) pages 397–400 * Water buffalo * Weeper capuchin *

Western grey kangaroo The western grey kangaroo (''Macropus fuliginosus''), also referred to as a western grey giant kangaroo, black-faced kangaroo, mallee kangaroo, sooty kangaroo and (when referring to the Kangaroo Island subspecies) Kangaroo Island grey kangaroo, is ...

* West Indian manateeBagemihl (1999) pages 374–377 *

Whiptail wallaby The whiptail wallaby (''Notamacropus parryi''), also known as the pretty-faced wallaby, is a species of wallaby found in eastern Australia. It is locally common from Cooktown in Queensland to near Grafton in New South Wales. Description It is ...

White-faced capuchin White-faced capuchin, or white headed capuchin, can refer to either of two species of gracile capuchin monkey: * ''Cebus imitator'', the Panamanian white-faced capuchin, also known as the Panamanian white-headed capuchin or Central American whi ...

* White-fronted capuchin *

White-handed gibbon The lar gibbon (''Hylobates lar''), also known as the white-handed gibbon, is an endangered primate in the gibbon family, Hylobatidae. It is one of the better-known gibbons and is often kept in captivity. Taxonomy There are five subspecies of ...

Bagemihl (1999) pages 288–290 *

White-lipped peccary The white-lipped peccary (''Tayassu pecari'') is a species of peccary found in Central America, Central and South America and the only member of the genus ''Tayassu''. Multiple subspecies have been identified. White-lipped peccaries are similar ...

Bagemihl (1999) page 424 * White-tailed deer * Wild cavy * Wild goat *

Yellow-bellied marmot The yellow-bellied marmot (''Marmota flaviventris''), also known as the rock chuck, is a large, stout-bodied ground squirrel in the marmot genus. It is one of fourteen species of marmots, and is native to mountainous regions of southwestern Canad ...

Poiani (2010) page 50 *

Yellow-footed rock wallaby The yellow-footed rock-wallaby (''Petrogale xanthopus''), formerly known as the ring-tailed rock-wallaby, is a member of the macropod family (the marsupial family that includes the kangaroos, wallabies, tree-kangaroos, and wallaroos). Descripti ...

* Yellow-toothed cavy

References

{{DEFAULTSORT:List Of Mammals Displaying Homosexual Behavior Mammals Mammals

Homosexual Homosexuality is romantic attraction, sexual attraction, or sexual behavior between members of the same sex or gender. As a sexual orientation, homosexuality is "an enduring pattern of emotional, romantic, and/or sexual attractions" to peop ...

Mammalian sexuality

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List

See also

References