Pleasure ride: A male killer whale rides the dorsal fin of another male. Sex just for the pleasure of it is common in many animals. Against nature? - Naturhistorisk Museum
From male killer whales that ride the dorsal fin of another male to female bonobos that rub their genitals together, the animal kingdom tolerates all kinds of lifestyles. A first-ever museum display, "Against Nature?," which opened last month at the University of Oslo's Natural History Museum in Norway, presents 51 species of animals exhibiting homosexuality. "Homosexuality has been observed in more than 1,500 species, and the phenomenon has been well described for 500 of them," said Petter Bockman, project coordinator of the exhibition. The idea, however, is rarely discussed in the scientific community and is often dismissed as unnatural because it doesn't appear to benefit the larger cause of species continuation. Gay animals out of the closet? - LiveScience
Some additional beliefs by religious conservatives are: Divergent beliefs about the nature of homosexuality
1,500 animal species practice homosexuality From the middle of October until next summer the Norwegian Natural History Museum of the University of Oslo will host the first exhibition that focuses on homosexuality in the animal kingdom.
List of animals displaying homosexual behavior - Wikipedia, the Couple of two male mallard ducks in a nature reserve in Germany For these animals, there is documented evidence of homosexual behavior of one or more of the following kinds: sex, courtship, affection, pair bonding, or parenting, as noted in researcher and author Bruce Bagemihl's 1999 book Biological Exuberance: Animal Homosexuality and Natural Diversity. Selected images