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This is Scientific American 60-Second Science. I'm Amy Kraft. Got a minute?

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Unless you're at a Chaucer convention, speaking middle English is not going to impress a potential romantic partner in 2013.

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Similarly, male Savannah sparrows have to make sure their vocalizations are up to date.

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Researchers analyzed three decades of recordings of male Savannah sparrows.

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And birds that changed their tune over the years did better with the ladies.

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The research is in the journal Animal Behaviour.

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While introductory notes of the sparrow's song stayed the same, the middle and end parts changed over time.

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In the 1980's, songs concluded with longer, high-pitched trills.

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More recent songs contain a series of clicks in the middle and a shorter, low-pitched trill at the end.

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Researchers found that the male sparrows that adopted the newer songs had higher rates of sexual reproduction.

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Because you don't want to be seen as behind the times.

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Indeed, Chaucer might have had his pick of the ladies in the 14th century.

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But few today can make heads or tails of his tales.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Amy Kraft.

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