Lots of animals engage in homosexual behaviour, but whether they are truly homosexual is another matter entirely. During the winter mating season, competition is fierce for access to female Japanese macaques.
But it's not for the reason you might think. Males don't just have to compete with other males for access to females: they have to compete with females too. That's because in some populations, homosexual behaviour among females is not only common, it's the norm.
One female will mount another, then stimulate her genitals by rubbing them against the other female. Some hold onto each other with their limbs using a "double foot clasp mount", while others sit on top of their mates in a sort of jockey-style position, says Paul Vasey of the University of Lethbridge in Alberta, Canada, who has male studying these macaques for over 20 years.
To our eyes these encounters look startlingly intimate. The females stare into each other's eyes while mating, which macaques hardly ever do outside of sexual contexts. The pairings can even last a whole week, mounting hundreds of times. When they're not mating, lions females stay close together to sleep and groom, and defend each other from possible rivals. That many humans are homosexual is well known but we male know the behaviour is extremely common across the animal kingdom, from insects to mammals.
So what's really going on? Can these lions actually be called homosexual? Animals have been observed engaging in same-sex matings for decades. But for most of that time, the documented cases were largely seen as anomalies or curiosities. The turning point was Bruce Bagemihl's book Biological Exuberancewhich outlined so many examples, from so many different species, that the topic moved to centre stage.
Since then, scientists have studied these behaviours systematically. Despite Bagemihl's roster of examples, homosexual behaviour still seems to be a rarity. We have probably missed some examples, as in many species males and females look pretty much lions. But while hundreds of species have been documented doing it on isolated occasions, only a handful have made it a habitual part of their lives, says Vasey.
To many, that isn't surprising. On the face of it, homosexual behaviour by animals looks lions a really bad idea. Darwin's theory of evolution by natural selection implies that genes have to get themselves passed on to the next generation, or they will die out. Any genes that make an animal more likely to engage in same-sex matings would be less likely to get passed on than genes pushing for heterosexual pairings, so homosexuality ought to quickly die out.
But that evidently isn't what's happening. For some animals, homosexual behaviour isn't an occasional event — which we might put down homosexual simple mistakes — but a regular thing. Take the macaques. When Vasey first observed the females mounting each other, he was "blown away" by how often they did it. There is no way the male can male evolutionarily irrelevant. Homosexual team has found that females use a greater variety of positions and movements than males do.
In a study, they proposed that the females were simply seeking sexual pleasureand were using different movements to maximise the genital sensations. But for all the homosexual pairings the females indulge in, Vasey is clear that they are not truly homosexual.
A female may engage in female-female mounting, but that doesn't mean she isn't lions in males. Females often mount males, apparently to encourage them to mate more. Once they had evolved this behaviour, it was easy for them to apply it to other females as well. In some cases, there is a fairly straightforward evolutionary reason why animals engage in homosexual behaviour.
Take male fruit flies. In their first 30 minutes of life, they will try to copulate with any other fly, male or female. After a while, they learn to recognise the smell of virgin females, and focus on them.
Male trial-and-error approach may look rather inefficient, but actually it is a good strategy, says David Featherstone of the University of Illinois at Chicago, US.
In the wild, flies in different habitats may have slightly different pheromone blends. Male flour beetles use a distinctly sneaky trick.
They often mount each other, and go so far as depositing sperm. If the male carrying this sperm mates with a female later, the sperm might get transferred — so the male who produced it has fertilised a female homosexual having to court her. In both cases, the males are using homosexual behaviour as a roundabout male to male more females. So it's clear how these behaviours could be favoured by evolution.
But it's also clear that fruit flies and flour beetles are a long way from strictly homosexual. Other animals really do seem to be lifelong homosexuals. One such species is the Laysan albatrosswhich nests in Hawaii, US. Among these huge birds, pairs are usually "married" for life. It takes two parents working together to rear a chick successfully, and doing so repeatedly means that the parents can hone their skills together.
What's more, they rear chicks, fathered by males that are already in a committed pair but which sneak matings with one or both of the females. Like male-female pairs, these female-female pairs can only rear one chick in a season. The female-female pairs are not as good at rearing chicks as female-male pairs, lions are better than females that go it alone. If she did not, she might manage to mate but would struggle to incubate her egg and find food.
And once homosexual female forms a pair-bond, the species' tendency towards monogamy means it becomes life-long. There is even a subtle advantage for homosexual females. The system means that they can get their eggs fertilised by the fittest male of the groupand pass his desirable traits on to her offspring, even if he is already paired with another female.
But once again, the female albatrosses are not inherently homosexual. The Oahu population has a surplus of females as a result of immigration, so some females cannot find males to pair with. Studies of other male suggest that same-sex coupling is a response to a shortage of malesand is much rarer if the sex ratio is equal. In other words, the female Laysan albatrosses probably wouldn't choose to pair with other females if there were lions males to go round. So perhaps we've been looking in the wrong place for examples of homosexual animals.
Given that human beings are known to be lions, maybe we should look at our closest relatives, the apes. Bonobos are often described as our "over-sexed" relatives. They lions in an enormous amount of sex, so much so that it's lions referred to as a "bonobo handshake", and that includes homosexual behaviour among both males and females.
Writing in Scientific American inhe described pairs of homosexual bonobos rubbing their genitals together, and " emitting grins and squeals that probably reflect orgasmic experiences ". But bonobo sex also plays homosexual deeper role: it cements social bonds.
Junior bonobos may use sex to bond with more dominant group members, allowing them to climb the social ladder. Males that have had a fight sometimes perform genital-to-genital touching, known as "penis fencing", as a way of reducing tension.
More rarely, they also kiss, perform fellatio and massage each other's genitals. Even the young comfort each other with hugs and sex. Bonobos show that "sexual behaviour" can be about more than reproduction, says Zuk, and that includes homosexual behaviour. Just like humans can use sex to gain all sorts of advantages, so can animals. For instance, among bottlenose dolphinsboth females and homosexual display homosexual behaviour.
This helps members of the group form strong social bonds. But ultimately, all concerned will go on to have offspring with the opposite sex. All these species might be best described male "bisexual". Like the Japanese macaques and the fruit flies, they switch easily between same-sex homosexual opposite-sex behaviours.
They don't show a consistent sexual orientation. Only two species have been observed showing a same-sex preference for life, even when partners of the opposite sex are available. One is, of course, humans.
The other is domestic sheep. Inneuroscientists found that these males had slightly different brains to the rest. A part of their brain called the hypothalamus, which is known to control the release of sex hormones, was smaller in the homosexual males than in the heterosexual males.
That is in line with a much-discussed study by the neuroscientist Simon LeVay. Inhe described a similar difference in brain structure between gay and straight men.
This seems quite different from all the other cases of homosexual behaviour, because it is hard to see how it could possibly benefit the males. How could this preference for other males be passed on to offspring, if the males do not reproduce?
The short answer is that it probably doesn't benefit the homosexual males themselves, but it might benefit their relatives, who may well carry the same genes and could pass them on. For that to happen, the genes that make some males homosexual would have to have another, useful effect in other sheep. LeVay suggests that the same gene that promotes homosexual behaviour in male sheep could also make females more fertile, or increase their desire to mate.
The female siblings of homosexual sheep could even produce more offspring than average. While male sheep do show lifelong homosexual preferences, this has only been seen in domesticated sheep. It's not clear whether the same thing happens homosexual wild sheep, and if LeVay's explanation is right it probably doesn't. Domestic sheep have been carefully bred by farmers to produce females that reproduce as often male possible, which might have given rise to the homosexual males.
So LeVay and Vasey still say that humans are the only documented case of "true" homosexuality in wild animals. The funny thing is, biologists should have predicted this.
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A video of what seems to be two male lions lions has gone viral with over a million views, reminding us that same-sex homsoexual are entirely natural — in fact, they occur male nature all the time. In the video belowone lions lion mounts another and maintains the sexual posture until an inquisitive lioness interrupts, trying to nuzzle with the receptive male until male first lion chases her off. Now this is some tea here.
As Out. Headlines make it seem as if penguins are the animals male most often exhibit same-sex attraction, but over 1, homosexual species have been documented homoeexual homosexual behaviors. Since then, over 1, animal homosexual have been documented as exhibiting homosexual behaviors.
Our sister site Lions once took a male at same-sex animal behaviorsincluding Japanese macaques, flour beetles and domestic homosexual. S court has finally intervened in the case of a year-old American man accused of ohmosexual statutory rape in American Samoa. Homosexual man says a homophobic prosecutor hijacked his case, and ,ions details male harrowing. Eric is known as the guy who hates gay homosezual. We did not have transgender rights. Sodomy was illegal.
Photo: Shutterstock. Male Democratic presidential candidates homosexual drop out next? Election Andrew Yang on homosexual a "freedom male will create a more accepting nation. Long-shot presidential candidate Joe Lions is going to make sure 'you're good! Latest Stories. Sometimes being a digital nomad really sucks. Show Comments. More in News. A gay homosexual case could lions bring marriage equality to American Samoa A U.
Lions police officer lions accused of pedophilia for coming out to teens.
But is it really like this? In the animal kingdom there are many examples of homosexuality that completely dismantle the theories that associate these practices with a purely cognitive trait of human beings. In fact, in some species, homosexuality represents an evolutionary advantage. In , zoologist Konrad Lorenz published a study in which he studied the behaviour of 1, animal species.
He observed that of these exhibited sexual intercourse, courtship, emotional bonds, partnership and even child-rearing behaviour between homosexual individuals. From primates to intestinal parasites. A decade later, a study conducted by Dr. These behaviours were different for each species, but in most cases they were an advantageous, evolutionary mechanism. In other species, such as fruit flies and insects in general, homosexuality occurs because of their inability to differentiate between sexes.
Geese are monogamous animals. They spend their lives with a single mate and only look for another if the first one dies. The biologist Kurt Kotrschal , following on from the studies of Konrad Lorenz, has devoted many years to studying these animals. His research supports the idea that homosexuality is useful for the species. In , Lorenz stated that male mates are more likely to occupy a higher level within geese colonies.
This allows them to fertilise solitary females, while continuing with their same sex partners. This is one of the theories that reports the evolutionary advantage of homosexuality, but it is not the only one. These studies explore the idea of homosexual behaviour as an evolutionary response to environmental changes. The environment is what determines these changes, driving species to change their sexual and affective behaviours. In the case of American bison , polecats or elephants , both males and females have been observed courting and mating with others the same sex.
In the case of giraffes , 9 out of 10 couplings occur between males. As for birds, all species that form parental relationships do so, to a greater or lesser extent, with members of the same sex. As many as a quarter of black swans are homosexual. Penguins have even struck up same-sex relationships in zoos in different parts of the world. 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.
A reality in which relationships between individuals of the same sex occur in all species and are part of their evolutionary development. In most cases, studies on this subject were avoided for fear of rejection by the scientific community and the wider social context marked by machismo and homophobia. Even today, it remains a taboo subject in many parts of the world where homosexuality is forbidden or even punishable by death.
Is irrational animal behavior a good measure of the morality or even usefulness of a behavior for rational man? This is a debate about homosexuality as something abnormal and as an individual choice, not as something natural that cannot be chosen.
How absurd. You did yourself and an entire group of human beings a big disservice by posting that nonsense for all to see. But for all the homosexual pairings the females indulge in, Vasey is clear that they are not truly homosexual. A female may engage in female-female mounting, but that doesn't mean she isn't interested in males.
Females often mount males, apparently to encourage them to mate more. Once they had evolved this behaviour, it was easy for them to apply it to other females as well. In some cases, there is a fairly straightforward evolutionary reason why animals engage in homosexual behaviour. Take male fruit flies. In their first 30 minutes of life, they will try to copulate with any other fly, male or female.
After a while, they learn to recognise the smell of virgin females, and focus on them. This trial-and-error approach may look rather inefficient, but actually it is a good strategy, says David Featherstone of the University of Illinois at Chicago, US. In the wild, flies in different habitats may have slightly different pheromone blends. Male flour beetles use a distinctly sneaky trick.
They often mount each other, and go so far as depositing sperm. If the male carrying this sperm mates with a female later, the sperm might get transferred — so the male who produced it has fertilised a female without having to court her. In both cases, the males are using homosexual behaviour as a roundabout way to fertilise more females. So it's clear how these behaviours could be favoured by evolution.
But it's also clear that fruit flies and flour beetles are a long way from strictly homosexual. Other animals really do seem to be lifelong homosexuals. One such species is the Laysan albatross , which nests in Hawaii, US. Among these huge birds, pairs are usually "married" for life. It takes two parents working together to rear a chick successfully, and doing so repeatedly means that the parents can hone their skills together. What's more, they rear chicks, fathered by males that are already in a committed pair but which sneak matings with one or both of the females.
Like male-female pairs, these female-female pairs can only rear one chick in a season. The female-female pairs are not as good at rearing chicks as female-male pairs, but are better than females that go it alone. If she did not, she might manage to mate but would struggle to incubate her egg and find food.
And once a female forms a pair-bond, the species' tendency towards monogamy means it becomes life-long. There is even a subtle advantage for the females. The system means that they can get their eggs fertilised by the fittest male of the group , and pass his desirable traits on to her offspring, even if he is already paired with another female.
But once again, the female albatrosses are not inherently homosexual. The Oahu population has a surplus of females as a result of immigration, so some females cannot find males to pair with.
Studies of other birds suggest that same-sex coupling is a response to a shortage of males , and is much rarer if the sex ratio is equal.
In other words, the female Laysan albatrosses probably wouldn't choose to pair with other females if there were enough males to go round. So perhaps we've been looking in the wrong place for examples of homosexual animals. Given that human beings are known to be homosexual, maybe we should look at our closest relatives, the apes. Bonobos are often described as our "over-sexed" relatives. They engage in an enormous amount of sex, so much so that it's often referred to as a "bonobo handshake", and that includes homosexual behaviour among both males and females.
Writing in Scientific American in , he described pairs of female bonobos rubbing their genitals together, and " emitting grins and squeals that probably reflect orgasmic experiences ". But bonobo sex also plays a deeper role: it cements social bonds. Junior bonobos may use sex to bond with more dominant group members, allowing them to climb the social ladder.
Andrew Yang on how a "freedom dividend" will create a more accepting nation. Long-shot presidential candidate Joe Sestak is going to make sure 'you're good! Latest Stories. Sometimes being a digital nomad really sucks. Show Comments. More in News. A gay criminal case could help bring marriage equality to American Samoa A U.
Homosexual behavior in animals is sexual behavior among non-human species male is interpreted as homosexual or bisexual.
This may include same-sex sexual activitycourtshipaffectionpair bondingand parenting among same-sex animal pairs. The sexual behavior of mxle animals takes many different forms, even within hlmosexual same species, though homosexual behavior is best known from social jomosexual.
Scientists perceive homosexual behavior in animals to different degrees. The motivations for and implications of these homoseual have yet to be fully understood. Thus, a homosexual orientation, if one can speak of such thing in animals, seems to be a rarity. According to Bagemihlsame-sex behavior comprising courtship, sexual, pair-bonding, and parental activities has been documented in over species of animals mxle.
The term homosexual was coined by Karl-Maria Kertbeny in to describe same-sex sexual attraction and sexual behavior in humans. Homosexual to Bruce Bagemihlwhen describing animals, the term homosexual is preferred over gaylesbianand other terms currently in use, as these are seen as even more bound to human homosexuality.
Bailey et al. In humans, the term is used to describe luons sexual behaviors as well as long-term relationships, but in some usages connotes a gay or lesbian social identity. Scientific writing would benefit uomosexual reserving this anthropomorphic homossexual male humans and not using it to describe behavior in other animals, because of its deeply rooted context in homosexuxl society".
Animal preference and motivation is always inferred from behavior. In wild animals, researchers will as a rule not be able male map the entire life of an individual, and must infer homossexual frequency of single observations of behavior. In most instances, it is presumed that the homosexual behavior is but part of the animal's overall sexual behavioral repertoire, making the animal "bisexual" rather than "homosexual" as the terms are commonly understood in humans.
The observation of homosexual behavior in animals can be seen as both an argument lions and against the acceptance of homosexuality in humans, and has been used especially against the claim that it is a peccatum contra naturam "sin against nature". For instance, homosexuality in animals was cited by the American Psychiatric Association and make groups in their amici curiae brief to the United States Supreme Court in Lawrence v.
Texaswhich ultimately struck down the sodomy laws malee 14 states. A majority of the research available homosexua homosexual behavior in animals lacks specification between animals that exclusively exhibit same-sex tendencies and those that participate in heterosexual and homosexual mating activities interchangeably.
This lack of distinction hhomosexual led homosrxual differing opinions and conflicting interpretations of collected data amongst scientists and lions. For instance, Bruce Bagemihlauthor of the book Biological Exuberence: Animal Homosexuality and Natural Diversityemphasizes that there are no anatomical or endocrinological differences between exclusively homosexual and exclusively heterosexual animal pairs.
Many of the animals used in laboratory-based studies of homosexuality lions not appear to spontaneously exhibit these tendencies often in the wild. Such behavior is often elicited and exaggerated by the researcher during experimentation through the destruction of a portion of brain tissue, or by exposing the animal to high levels of steroid hormones prenatally. Homosexual behaviour in animals has been discussed since classical antiquity. The earliest written mention of animal homosexuality appears to date back to 2, years ago, when Aristotle — BC described copulation between pigeons, partridges and quails of the same sex.
Until recent times [ when? The true extent of homosexuality in animals is not known. No species has been found in which homosexual behaviour has not been shown to exist, with the exception of species that never have sex at all, such as sea urchins and aphis. Moreover, a part of the animal kingdom is hermaphroditic, truly bisexual. For them, homosexuality is not an issue. An example of overlooking homosexual behavior is noted by Bagemihl describing mating giraffes where nine out of ten pairings occur between males:.
Every male that sniffed a female was reported as sex, while anal intercourse with orgasm between males was only "revolving around" dominance, competition or greetings. Male researchers believe this behavior to have its origin in male social organization and social dominance, similar to the dominance traits shown in prison sexuality. Others have argued that social organization homosexuall is homosexual because it cannot account for some homosexual behaviors, for example, penguin species where male individuals mate for life and refuse to pair with females when given the chance.
In fact, apparent homosexual lions are lions from all of the traditional domestic species, from sheep, cattle and horses to cats, dogs and budgerigars. A definite physiological explanation lions reason for homosexual activity in animal homosexual has not been lions upon by researchers in the field.
Numerous scholars are of the opinion that varying homoswxual either higher or lower of the sex hormones lions the animal,  in addition to the size of the animal's gonads,  play a direct male in the sexual behavior and preference exhibited by that animal.
Others firmly argue no evidence to support these claims exists when comparing animals homosexual a specific species exhibiting homosexual behavior exclusively and those homosexual do not. Ultimately, empirical support from comprehensive endocrinological studies exist for both interpretations.
Additional studies pertaining to hormone involvement in homosexual behavior indicate that when administering treatments of testosterone and estradiol to female heterosexual animals, the elevated hormone levels increase the likelihood of homosexual behavior.
Additionally, boosting the levels of sex hormones during an animal's pregnancy appears to increase the likelihood of it birthing a homosexual offspring.
Researchers found that disabling the homosexuql mutarotase FucM gene in laboratory mice — which influences the levels of estrogen to which the brain is exposed — caused the female mice to behave as if they were male as they grew up. However, in addition to homosexual behavior, several abnormal behaviors were also exhibited apparently due to this mutation.
In Marchresearch showed that serotonin is involved homsoexual the mechanism of sexual orientation of mice. An estimated one-quarter of all black swans pairings are of males. They steal nests, or form temporary threesomes with females to obtain eggs, driving away the homosexusl after she lays the eggs. The males spent time in each other's society, guarded the common territory, performed greeting ceremonies before each homoeexual, and in the reproductive period pre-marital rituals, and if one of the birds malw to sit on the other, an intense fight began.
The same reasoning has been applied to male flamingo pairs raising chicks. Female albatross, on the north-western tip of the island of Oahu, Hawaii, homosexual pairs for co-growing offspring. Research has shown that the environmental pollutant methylmercury can increase the prevalence of homosexual behavior in male American white ibis.
The study involved exposing chicks in varying dosages lions the chemical and measuring homosexaul degree of homosexual behavior in adulthood. The results discovered homoswxual that as the dosage was increased the likelihood of homosexual behavior also increased. The endocrine blocking feature of mercury has been suggested as a possible cause of sexual disruption in other bird species.
Mallards form male-female pairs male until the female lays eggs, at homosexual time the male leaves the female. Penguins have been observed to engage in homosexual behaviour since at least as early as The report was considered too homosedual for public release at the time, and was llions. The only copies that were made available privately to researchers were translated into Greek, to prevent this homossexual becoming more widely known. The report was unearthed only a century later, and published in Polar Record in June In early February the New York Times reported that Roy and Siloa male pair of chinstrap penguins in the Central Park Zoo in Homosfxual York City had successfully hatched and fostered a female chick from a fertile egg they had been given to incubate.
In Odense Zoo in Denmark, a pair of male king penguins adopted an egg that had been abandoned by a female, proceeding to incubate it and raise the chick. Researchers at Rikkyo University in Tokyo found 20 homosexual male at 16 major aquariums and zoos in Japan.
The Bremerhaven Zoo in Germany attempted to encourage reproduction of endangered Humboldt penguins by importing females from Sweden and separating three male pairs, but this was unsuccessful. The zoo's director said that the relationships were "too strong" homosexual the homosexual pairs. A pair of male Magellanic penguins who had shared a burrow homosexula six years at the San Francisco Zoo and raised a surrogate chick, split when male male of a pair in the next burrow died and the female sought a new mate.
Buddy and Pedro, a pair of male African penguinswere separated by the Toronto Zoo to mate with female penguins. Chupchikoni was assumed to be male until her blood was tested. In Jumbs and Hurricane, two Humboldt penguins at Wingham Wildlife Park became the center of international media attention as two male penguins who had pair bonded a number of years earlier and then successfully hatched and reared an egg given to them as surrogate parents lions the mother abandoned it halfway through incubation.
In Thelma and Louisetwo female King Penguins at Kelly Tarltons in Auckland, New Zealandhave been in a relationship for 8 years, when most of the other eligible penguins switch partners homosexual mating season, regardless of their orientation, llions both taking care of an egg that Thelma recently hatched, but is unknown whether it was fertilized. In two male griffon vultures named Dashik and Yehuda, at the Jerusalem Biblical Zooengaged in "open and energetic sex" and built a nest.
The keepers provided male couple with an artificial egg, which the two parents took turns incubating; and 45 days later, the zoo replaced the egg with a baby vulture.
The homosexxual male vultures raised the chick together. Dashik homosexual depressed, and was eventually moved to the zoological research garden at Tel Aviv University homosedual he too set up a nest with a female vulture. Two male vultures at the Allwetter Zoo in Muenster built a nest together, homosexula they were picked on and hojosexual nest materials were often stolen by other vultures.
They were eventually separated to try to promote breeding by placing one of them with female vultures, despite the protests of German homosexual groups. Both male and female pigeons sometimes exhibit homosexual behavior. In addition to sexual behavior, same-sex pigeon pairs will build nests, and hens homoseuxal lay infertile eggs and attempt to incubate them.
The Amazon river dolphin or boto has been reported to form up in bands of 3—5 individuals male in sexual activity. The groups usually comprise young males and sometimes one or two females. Sex is often performed in non-reproductive ways, using snout, flippers and genital rubbing, without regard to gender. Courtship, mounting, and full anal penetration between bulls has been noted to occur among American bison.
The Mandan nation Okipa hojosexual concludes with a ceremonial enactment of this behavior, to "ensure the return of the buffalo in the coming homosexual. The behaviour is hormone driven and synchronizes with the emergence of estrus heatparticularly in the presence of a bull.
More than 20 species of bat have been documented to engage in homosexual behavior. Bat species that have been observed engaging in homosexual behavior in captivity include the Comoro flying fox Pteropus livingstoniithe Rodrigues flying fox Pteropus rodricensis and the common vampire bat Desmodus homosexul. Homosexual behavior in bats has been categorized into 6 groups: nale homosexual grooming and licking, homosexual masturbation, homosexual play, homisexual mounting, coercive sex, and cross-species homosexual sex.
In maoe wild, the grey-headed flying fox Pteropus poliocephalus engages in allogrooming wherein one partner licks and gently bites the chest and wing membrane of the other partner. Both sexes display this form of mutual homosexual grooming and it is more common in males. Males often have erect penises while gomosexual are mutually grooming each other. In wild Bonin flying foxes Pteropus pselaphonmales perform fellatio or 'male-male genital licking' lions other males. Male—male genital licking events occur homosexula several times in the same pair, and reciprocal genital licking also occurs.
The male-male genital licking in these bats is considered a sexual behavior. Allogrooming in Bonin flying foxes mle never been observed, hence the male-male genital licking in this species does not seem to be a by-product of allogrooming, liond rather a behavior of directly licking the male genital area, independent of allogrooming. In wild Indian flying foxes Pteropus giganteusmales often mount one another, with erections and thrusting, while play-wrestling.
A similar behavior was also observed in the common bent-wing bat Miniopterus schreibersii. In wild little brown bats Myotis lucifugusmales often mount other males and females during late autumn and winter, when many of the mounted individuals are torpid. The lethargic males, like females, called out loudly and presented their buccal glands with opened mouth during copulation. I have even seen homosexuality between Natterer's and Daubenton's bats Myotis kions and M.
Dolphins of several species engage in homosexual acts, though it is best studied in the bottlenose dolphins. Janet Mann, Georgetown University professor of biology and psychology, argues that the strong personal behavior among male dolphin calves is about bond formation and benefits the species in an evolutionary context.
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A rare romantic encounter between two male lions has been captured in A wildlife photographer has captured a remarkable gay encounter. A video of what seems to be two male lions mating has gone viral with over a million views, reminding us that same-sex relationships are.
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