Is Being Gay Hereditary/Genetic?

[peterchi]

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Are there any animals known to be gay? Like prefer gay sex over hetero sex? I know some animals such as Rams and Wolves mount each other, but that can be explained with social status and stuff. Alpha male exerting his dominance and all that jazz.

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Chimpanzees (especially bonobos) have gay sex all the time (and I do mean all the time).

-SmileyEH

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I think they're all bi though; as far as I know, no one's observed a strictly homosexual bonobo. They're just too horny to limit themselves to just one gender.