Wednesday, June 20, 2012

Repost: Gay Men Have Evolutionary Benefit For Their Families

Huffington Post via Out Left

While female sexuality appears to be more fluid, research suggests that male gayness is an inborn, unalterable, strongly genetically influenced trait. But considering that the trait discourages the type of sex that leads to procreation — that is, sex with women — and would therefore seem to thwart its own chances of being genetically passed on to the next generation, why are there gay men at all?

Put differently, why haven't gay man genes driven themselves extinct?

This longstanding question is finally being answered by new and ongoing research. For several years, studies led by Andrea Camperio Ciani at the University of Padova in Italy and others have found that mothers and maternal aunts of gay men tend to have significantly more offspring than the maternal relatives of straight men. The results show strong support for the "balancing selection hypothesis," which is fast becoming the accepted theory of the genetic basis of male homosexuality.

2 comments:

iAmA gaYte-keeper said...

Interesting...

Writer said...

I thought so, gayte-keeper. Though I think the research is a little behind the times: I've thought this since I came out in the early 90s, but it is nice that science is finally hopping on board. ;)