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Guppy sex proves the odd guy is in
Guppy sex proves the odd guy is in

When it comes to sex in the rivers of Trinidad, apparently the odd man is in. Female guppies greatly prefer the spicy pisces, choosing to mate with males who are too cool for the school, according to a study published online Wednesday in the journal Nature. “It’s good to be different, in this case -- if you’re a guppy,” said Kimberly A. Hughes, a Florida State University evolutionary biologist and coauthor of the study. Fashion designers have known for some time that standing out in a crowd enhances your chances with the ladies, but evolutionary biologists have puzzled over why polymorphism persists over generations. Hughes was fishing around the concept of negative frequency...

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