Friday, August 22, 2008

Another Theory On Dudes Into Dudes

A neuroscience seminar in college was the first place I heard a few angles on answering 'if homosexuality is non-procreative, what is the evolutionary reason for its existence?'  I think the most popular or frequently mentioned theory I had heard was that gay men would not have children of their own, so they served as a family (and particularly childcare) buffer in the event that one or more of their siblings were to be killed or otherwise unable to care for their family.

A university study in Italy has another angle: 'hyper-sexual' women.  Apparently, the same gene that causes men to like men also causes women to like men, leading to more children.  Full story here: Bisexuality passed on by 'hyper-heterosexuals'

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