Homosexuality a Pathogen ?

[BmorePat87]

(05-19-2016, 07:32 PM)Rotobeast Wrote: First off.... I'm not subscribing to this theory and imagine it's propaganda.
I had not heard of it and figured I would share this post from another forum.
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Gregory Cochran, physicist and adjunct professor at the university of Utah has developed the hypothesis that homosexuality is caused by a pathogen [1] - either a virus or a bacterium. There are several good reasons to believe this may be the case.

- The low hereditability of homosexuality (0.22) [2]
- The absence of homosexuality in hunter-gatherer populations
- The relatively high frequency of homosexuality (~4% in the west)
- The lack of any plausible evolutionary explanation.

In short, a lack of sexual interest by males in females would be an evolutionary penalty. If it were caused by a 'gay gene', the trait would have been selected out long ago because of a lack of reproductive fitness. Also, the frequency is too high to be caused by a mutation.

Wait... we're deciding that there were no gay humans when we were hunters/gatherers? lol?

Also, I've seen theories on the evolutionary benefit of the gene. 
http://www.huffingtonpost.com/2012/06/12/why-are-there-gay-men_n_1590501.html

This one theory seems to suggest an X chromosome gene that increases fertility in females. So while the males may not procreate much or at all, it is passed down to sisters as well.