I thought the only 'gay' activities in the animal world were for dominance and reproductive competition (IE humping another male so as to injure him and make him less attractive to females).
Didn't the supposedly gay penguin eventually go to a female?
Interesting article! Thanks for posting.
Some interesting excerpts from the article (I haven't finished reading it):
"Various forms of same-sex sexual activity have been recorded in more than 450 different species of animals by now, from flamingos to bison to beetles to guppies to warthogs. A female koala might force another female against a tree and mount her, while throwing back her head and releasing what one scientist described as "exhalated belchlike sounds." Male Amazon River dolphins have been known to penetrate each other in the blowhole. Within most species, homosexual sex has been documented only sporadically, and there appear to be few cases of individual animals who engage in it exclusively. For more than a century, this kind of observation was usually tacked onto scientific papers as a curiosity, if it was reported at all, and not pursued as a legitimate research subject. Biologists tried to explain away what they'd seen, or dismissed it as theoretically meaningless — an isolated glitch in an otherwise elegant Darwinian universe where every facet of an animal's behavior is geared toward reproducing. One primatologist speculated that the real reason two male orangutans were fellating each other was nutritional."
[...]
"There is still an overall presumption of heterosexuality," the biologist Bruce Bagemihl told me. "Individuals, populations or species are considered to be entirely heterosexual until proven otherwise." While this may sound like a reasonable starting point, Bagemihl calls it a "heterosexist bias" and has shown it to be a significant roadblock to understanding the diversity of what animals actually do."
[...]
"Homosexuality is a tough case, because it appears to violate that central tenet, that all of sexual behavior is about reproduction. The question is, why would anyone invest in sexual behavior that isn't reproductive?" –— much less a behavior that looks to be starkly counterproductive. Moreover, if animals carrying the genes associated with it are less likely to reproduce, how has that behavior managed to stick around?"
[...]
"a single explanation of homosexual behavior in animals may not be possible, because thinking of "homosexual behavior in animals" as a single scientific subject might not make much sense. "Biologists want to build these unified theories to explain everything they see," Vasey told me. So do journalists, he added — all people, really. "But none of this lends itself to a linear story. My take on it is that homosexual behavior is not a uniform phenomenon. Having one unifying body of theory that explains why it's happening in all these different species might be a chimera." The point of heterosexual sex, Vasey said, no matter what kind of animal is doing it, is primarily reproduction. But that shouldn't trick us into thinking that homosexual behavior has some equivalent, organizing purpose — that the two are tidy opposites. "All this homosexual behavior isn't tied together by that sort of primary function," Vasey said. Even what the same-sex animals are doing varies tremendously from species to species. But we're quick to conceive of that great range of activities in the way it most handily tracks to our anthropomorphic point of view: put crassly, all those different animals just seem to be doing gay sex stuff with one another. As the biologist Marlene Zuk explains, we are hard-wired to read all animal behavior as "some version of the way people do things" and animals as "blurred, imperfect copies of humans."
Finally for what it's worth, I'm pretty sure my dog is gay