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More flight than fancy?

Scientists from the universities of Exeter and Cambridge have turned atextbook example of sexual selection on its head and shown that females may be more astute at choosing a mate than previously thought. New research, funded by the Leverhulme Trust and published online on April 5 in Current Biology, shows that differences in the lengths of the long tail feathers possessed by male barn swallows are an example of natural selection, not sexual selection.

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