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In Search of the 'Gay Gene'
By Jack Lucentini Special to The Washington Post Evolutionary biologists have long
wondered why homosexuality exists. Since homosexuality does not directly result
in the passing of genes to future generations -- evolution's driving force -- it
seems odd that it persists in so many societies.
A small but growing group of
researchers, however, says evidence from both human and animal societies
suggests that same-sex attraction does, in fact, have an important evolutionary
function.
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