Griff's cholesterol primer
bloodorchid: paleo and primal are not low carb
Winterbike: What I eat every day is what other people eat to treat themselves.
Interesting question... I read a theory that when a population of people (or animals) gets quite high there are more homosexuals born, I guess because there's less need to keep repopulating or something? However, I just think it's something that IS and not something that can be questioned. I mean, why are some people born trans?? There's no biological reason or purpose for it. It just is.
I scored a big fat 0 on the Kinsey, but that was to be expected (at least to me). I'm very boringly attracted only to men! Then again, gender wise, I'm not a very feminine or female woman either. I have a lot of masculine traits (not always obvious at first glance). I used to want to be a boy but I grew out of it (and always said that if I HAD been born a male I'd be a raging homosexual!!!) I just don't find women sexually attractive at all.
(Psst...the answer is yes)
But to get back on topic, and to try to address the original poster's question, we don't really know why homosexuality exists or why it persists. Kin selection, whereby having a gay relative confers a reproductive advantage on the close genetic relatives of the gay man had been a popular theory, but has been falling out of favor in recent years. Then you have the "David Beckham" theory, which suggests that men who are born with nearly all, but not quite, the genes required to make a homosexual are more attractive to females. Homosexuals are nothing more than these normally advantageous collection of genes crossing a tipping point from advantage to disadvantage. There is also the sexually antagonistic selection theory. This argues the same genes that produce gayness in men produce increased fecundity in women. Note that many of the theories to explain homosexuality are really theories to explain "gayness". Though we tend to lump them together some cultural contexts, there is no reason to assume gayness and lesbianism are related. The relatively strong evidence that gayness is largely genetic has not been been replicated among lesbian populations.
Last edited by JWBooth; 08-05-2012 at 09:59 PM.
I don't think it's a question of why, it just is. Why do some animals commit infanticide?
At the end of the day, it's just a result of random mutations. You can conclude if this behaviour of homosexuality is recent and exclusive to certain conditions, then it may be an ailment or failure of some sort. If this behaviour appears to be widespread historically and culturally, then you have to conclude that these genes have been more successful in the past at competing for survival and reproduction than the other options.
I scored a 0. Although I can't help thinking that it would be really fun to be able to throw a Ranma 1/2.
In all of the universe there is only one person with your exact charateristics. Just like there is only one person with everybody else's characteristics. Effectively, your uniqueness makes you pretty average.