So those that think it's how you raise a child, what do you think animals do to raise their children gay? (And also, why do you think being gay is so terrible in the first place?)
"A 1999 review by researcher Bruce Bagemihl shows that homosexual behavior has been observed in close to 1,500 species, ranging from primates to gut worms, and is well documented for 500 of them. Animal sexual behaviour takes many different forms, even within the same species. The motivations for and implications of these behaviors have yet to be fully understood, since most species have yet to be fully studied. According to Bagemihl, "the animal kingdom [does] it with much greater sexual diversity – including homosexual, bisexual and nonreproductive sex – than the scientific community and society at large have previously been willing to accept." Current research indicates that various forms of same-sex sexual behavior are found throughout the animal kingdom."
"According to geneticist Simon Levay in 1996, "Although homosexual behavior is very common in the animal world, it seems to be very uncommon that individual animals have a long-lasting predisposition to engage in such behavior to the exclusion of heterosexual activities. Thus, a homosexual orientation, if one can speak of such thing in animals, seems to be a rarity. One species in which exclusive homosexual orientation occurs, however, is that of domesticated sheep (Ovis aries). About 10% of rams (males) refuse to mate with ewes (females) but do readily mate with other rams."
Approximately 8% of rams exhibit sexual preferences [that is, even when given a choice] for male partners (male-oriented rams) in contrast to most rams, which prefer female partners (female-oriented rams).
In fact, apparent homosexual individuals are known from all of the traditional domestic species, from sheep, cattle and horses to cats, dogs and budgerigars."
http://en.wikipedia.org/wiki/Homosexual_behavior_in_animalsThe penguin section is interesting, mainly for the suppression of information.
For those who might actually care, would be a good idea to look into mice and fruitflies and other laboratory animals, since research and experiments are done to their genes, environment, and brain chemistry to see how that alters their sexual behavior.