http://www.nytimes.com/2007/01/25/science/25sheep.html?hp&ex=1169787600&en=9768bd40a991ddee&ei=5094&partner=homepage This is why I hate PETA. . . .either they were too high from all of their natural organic "grass" they smoke, or their brain did not get enough nutrients and proteins with their vegan diets.
The dilemma of proving whether "gayness" is based on physiological or some phenotypic expression of genes vs. using the consequence of using these findings to physically "cure" homosexuality is a very real issue. There is a wonderful discussion on it in well-researched book "Queer Science" by LeVay. Indeed, though I find the scientific works on homosexuality facinating, I think the winning strategy and the priority is to change our society, our culture's attitude toward gays.
The three goals we should strive for now are: "Exposure, exposure, and fight for equality." Normalization of homosexuality is what the bigots fear the most.
BTW: Tyra Banks stated in her show yesterday that homosexuality in twins is scientifically proven. . . um. . . Tyra, great work giving exposures to gays and all, but please don't make unsupportable statements like these.