Survival of genetic homosexual traits explained
Italian geneticists may have explained how genes apparently linked to male homosexuality survive, despite gay men seldom having children. Their findings also undermine the theory of a single "gay gene". The researchers discovered that women tend to have more children when they inherit the same - as yet unidentified - genetic factors linked to homosexuality in men. This fertility boost more than compensates for the lack of offspring fathered by gay men, and keeps the "gay" genetic factors in circulation. The findings represent the best explanation yet for the Darwinian paradox presented by homosexuality: it is a genetic dead-end, yet the trait persists generation after generation.
See also: How homosexuality is 'inherited' (BBC)
A touchy subject this, claiming as it does that any genetic element of male homosexuality might be nothing more than a byproduct of female sexuality. It's gratifying, however, to see that reports about the study are not being dumbed-down into talk about specific 'gay genes'. Life is far more complex than that.