> Much the same could be said for gayness. If it were genetic, it should have been eliminated by evolution by now. Which suggests that it's not. There are very

> Much the same could be said for gayness. If it were genetic, it should have been eliminated by evolution by now. Which suggests that it's not. There are very plausible explanations for the genetic basis of gayness. One is that being gay is essentially a "byproduct" of higher fecundity in women - I'd have to search for the study, but gay men with sisters tend to have sisters with more kids than the norm. The other is the "guncle" hypothesis (which is related to the previous one). While gay men and women do not have their own biological children (at least through gay relationships), they are able to spend additional resources on their nieces and nephews. Anecdotal obviously, but it certainly worked this way in my family. As a guncle I helped pay for my niece's education (and was happy to do so because I don't have to care for children of my own ).