How do Christians who reject homosexuality account for the presence of homosexuality and other non-reproductive sexual behaviors in animals?

One argument I have encountered in support of the view that homosexuality is natural, and therefore acceptable, is that it occurs within the animal kingdom. For example, the Wikipedia article [Homosexual behavior in animals](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals) explains: > Various > non-human [animal](https://en.wikipedia.org/wiki/Animal) species > exhibit behavior that can be interpreted > as [homosexual](https://en.wikipedia.org/wiki/Homosexual) or [bisexual](https://en.wikipedia.org/wiki/Bisexuality) , > often referred to as *same-sex sexual behavior* (SSSB) by scientists. > This may include same-sex [sexual > activity](https://en.wikipedia.org/wiki/Animal_sexual_behaviour), [courtship](https://en.wikipedia.org/wiki/Courtship_display), [affection](https://en.wikipedia.org/wiki/Affection), [pair bonding](https://en.wikipedia.org/wiki/Pair_bond) , and [parenting > among same-sex animal > pairs](https://en.wikipedia.org/wiki/Homosexual_parenting_in_animals).[^(\[1\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-ES-1)[^(\[2\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-Bailey_2009-2)[^(\[3\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-3) Various > forms of this are found among a variety > of [vertebrate](https://en.wikipedia.org/wiki/Vertebrate) and [arthropod](https://en.wikipedia.org/wiki/Arthropod) taxonomic [classes](https://en.wikipedia.org/wiki/Class_(biology)) . > The sexual behavior of non-human animals takes many different forms, > even within the same species, though homosexual behavior is best known > from [social species](https://en.wikipedia.org/wiki/Sociality) . > > Scientists observe same-sex sexual behavior in animals in different > degrees and forms among different species > and [clades](https://en.wikipedia.org/wiki/Clade) . A 2019 paper states > that it has been observed in over 1,500 > species.[^(\[4\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-4) Although > same-sex interactions involving genital contact have been reported in > many animal species, they are routinely manifested in only a few, > including > humans.[^(\[5\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-5) Other > than humans, the only known species to exhibit exclusive homosexual > orientation is the domesticated sheep ([*Ovis > aries*](https://en.wikipedia.org/wiki/Ovis_aries)) , involving about > 10% of > males.[^(\[6\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-Poiani2010-6)[^(\[7\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-levay-7)[^(\[8\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-8) The > motivations for and implications of these behaviors are often lensed > through anthropocentric thinking; [Bruce > Bagemihl](https://en.wikipedia.org/wiki/Bruce_Bagemihl) states that > any hypothesis is "necessarily an account of human interpretations of > these > phenomena".[^(\[9\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-Bagemihl-9)^( : 2)  > > Proposed causes for same-sex sexual behavior vary across species. > Theories include mistaken identity (especially for > arthropods), [sexually antagonistic > selection](https://en.wikipedia.org/wiki/Sexual_conflict), [balancing > selection](https://en.wikipedia.org/wiki/Balancing_selection) , > practice of behaviors needed for reproduction, expression of social > dominance or submission, and social > bonding.[^(\[10\])](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals#cite_note-10) Genetic , > hormonal, and neurological variations as a basis for individual > behavioral differences within species have been proposed, and same-sex > sexual behavior has been induced in laboratory animals by these means. Similarly, other sexual behaviors such as masturbation, oral sex, and anal sex have also been observed in animals. Once again, the Wikipedia article [Non-reproductive sexual behavior in animals](https://en.wikipedia.org/wiki/Non-reproductive_sexual_behavior_in_animals) explains: > **Animal non-reproductive sexual behavior** encompasses [sexual activities](https://en.wikipedia.org/wiki/Animal_sexual_behaviour) that > animals participate in which do not lead to > the [reproduction](https://en.wikipedia.org/wiki/Reproduction) of the > species. Although procreation continues to be the primary explanation > for [sexual behavior in > animals](https://en.wikipedia.org/wiki/Animal_sexual_behavior) , recent > observations on animal behavior have given alternative reasons for the > engagement in sexual activities by > animals.[^(\[1\])](https://en.wikipedia.org/wiki/Non-reproductive_sexual_behavior_in_animals#cite_note-Waal-1) Animals > have been observed to engage in sex for [social > interaction](https://en.wikipedia.org/wiki/Social_interaction) , > bonding, exchange for significant materials, affection, mentorship > pairings, sexual enjoyment, or as demonstration of [social > rank](https://en.wikipedia.org/wiki/Dominance_(ethology)) . Observed > non-procreative sexual activities include > non-[copulatory](https://en.wikipedia.org/wiki/Copulation_(zoology)) mounting > (without insertion, or by a female, or by a younger male who does not > yet produce semen), oral sex, genital stimulation, anal stimulation, > interspecies mating, [same-sex sexual > interaction](https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals),[^(\[2\])](https://en.wikipedia.org/wiki/Non-reproductive_sexual_behavior_in_animals#cite_note-Dubuc-2)[^(\[3\])](https://en.wikipedia.org/wiki/Non-reproductive_sexual_behavior_in_animals#cite_note-Bailey-3) and > acts of affection, although it is doubted that they have done this > since the beginning of their > existence.[^(\[4\])](https://en.wikipedia.org/wiki/Non-reproductive_sexual_behavior_in_animals#cite_note-4) There > have also been observations of sex with cub > participants,[^(\[5\])](https://en.wikipedia.org/wiki/Non-reproductive_sexual_behavior_in_animals#cite_note-Dukas-5) as > well as [sex with dead > animals](https://en.wikipedia.org/wiki/Necrophilia_in_animals).[^(\[6\])](https://en.wikipedia.org/wiki/Non-reproductive_sexual_behavior_in_animals#cite_note-necro2012-6) How can Christians respond to the fact that animals sometimes engage in sexual behaviors like homosexuality or masturbation? If God made animals, and if God is against sexual immorality, why do these behaviors exist in nature? Are animals “sinning” when they do this, or is it acceptable for them but still wrong for humans? How do Christians who are against homosexuality explain the evidence of homosexuality and other sexual behaviors in animals?