Christian group says demon sex makes you gay

[wickerwoman]

117. There's been some research on birth order and sexual orientation.

Here you go:

http://en.wikipedia.org/wiki/Fraternal_birth_order_and_male_sexual_orientation

Links to several studies that suggest having a large number of older brothers increases the odds of later sons being gay due to possibly an immune response in the mother's uterus.

I've seen other studies that hypothesize that nature selects for this phenomenon because after having several sons to carry on the genes, it's beneficial to have additional sons who can help hunt and raise the kids but who won't have biological kids of their own and raise the population so quickly beyond what the environment can support.

Obviously all still just theories but I think it is an interesting phenomenon and explanation.