Recent scientific research has been much more diverse, not shying away from examples of homosexual behavior in animals but studying it instead. In fact, according to scientist Petter Bøckman, “No species has been found in which homosexual behavior has not been shown to exist, with the exception of species that never have sex at all.” And that’s what you’ll see in this list: everything from the largest predator to the smallest insect displays homosexual behavior at some point, with some even showing it more than heterosexual behavior. Though some of this behavior has evolutionary benefits, some is done purely for bonding or pleasure. Did you know elephants engage in same-sex activity? How about one of the smartest animals on the planet, dolphins? Or countless species of our closest relatives? Made up of mammals, birds, fish, and more, the diversity of gay, lesbian, and bisexual animals may surprise you. To see which well-known animals made the list, check out these 25 Gay Animals You Might Not Realize Are Indeed Gay. You want to know what else you might have thought was straight? These superheroes and villains.