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Oct 11, 2021, 11 tweets

🏳️‍🌈Today is coming out day

Perhaps unknown to some of you, same-sex sexual behavior is not an exclusively human trait, but it has been extensively documented in non-human animals as well. Here are some animals who also show same sex behaviour:

#ComingOutDay #LGBT #wildlife

1) Bonobo

The bonobo is an African ape closely related to humans. Studies suggest 75% of bonobo sex is nonreproductive & that nearly all bonobos are bisexual. Frans de Waal calls the species a "make love, not war" primate. He believes bonobos use sex to resolve conflicts

2) Bottlenose dolphin

These dolphins show one of the highest rates of same-sex sexual behavior documented in any animal. ♂️-♂️ mounting, genital contact & ‘goosing’ appear to strengthen alliances between small groups of males and provide practice for later opposite-sex encounter

3) Laysan albatross ♀️-♀️

Birds in Hawaiian populations form long-term female–female pair bonds, which include courtship displays, copulation, mutual grooming behavior and egg incubation.

4) Chinstrap penguins 🐧♂️🐧♂️

Penguins in captivity can form long-lasting same-sex pair bonds and engage in same-sex sexual behaviors, including copulation. Like Roy & Silo, the 2 male chinstrap penguins in New York City's @centralparkzoo

5) Ram🐏

A small proportion, around 6%, of domesticated rams displays typical male courtship and copulatory behaviors toward other males and can be exclusively male oriented even when estrous females are available.

6) Flour beetle

Forced male–male mounting and copulation occur frequently & there is limited evidence that sperm deposited during homosexual mounting can be indirectly transferred to a female during subsequent heterosexual copulation.

7) Guppy

Males maintained in all-male social environments directed
more courtship displays toward other males than those
kept in mixed-sex environments. This tendency persisted
even after females were introduced into the previously
all-male tanks.

8) Zebra finch

Females administered estrogen synthesis inhibitors pair
bond with other females, and male deprivation during
juvenile development can cause opposite-sex partner
preferences in both females and males.

9) Crepidula fornicata

All snails of this species start out male & have weak sex
discrimination. If they pair with another male, then 1
simply changes sex. Flexibility in sex changing allows for a
weak sex-discrimination system

10) Garter snakes

Some ♂️ mimic ♀️ in size or pheromone attributes, & are courted by other ♂️ when females are absent. However, ♂️-♂️ courtship is not likely a result of mistaken sex recognition; attracting males might allow solitary ♂️ to thermoregulate & protect themselves

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