Warum gibt’s schwule Männer?

These 1 (von Paul Vasey,  University of Lethbridge’s department of psychology, Kanada):

Canadian researchers say they have found the first evidence to back up the theory that gay men have the evolutionary advantage of being “super uncles”, a way of enhancing the survival prospects of close relatives and — indirectly, at least — making it more likely their genes are passed on.

[...] research found evidence that gay men may be more willing to support their nieces and nephews financially and emotionally. .. continue reading ..