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1 .This is Scientific American 60-Second Science. I'm Amy Kraft. Got a minute?
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2 .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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3 .Similarly, male Savannah sparrows have to make sure their vocalizations are up to date.
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4 .Researchers analyzed three decades of recordings of male Savannah sparrows.
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5 .And birds that changed their tune over the years did better with the ladies.
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6 .The research is in the journal Animal Behaviour.
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7 .While introductory notes of the sparrow's song stayed the same, the middle and end parts changed over time.
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8 .In the 1980's, songs concluded with longer, high-pitched trills.
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9 .More recent songs contain a series of clicks in the middle and a shorter, low-pitched trill at the end.
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10 .Researchers found that the male sparrows that adopted the newer songs had higher rates of sexual reproduction.
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11 .Because you don't want to be seen as behind the times.
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12 .Indeed, Chaucer might have had his pick of the ladies in the 14th century.
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13 .But few today can make heads or tails of his tales.
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14 .Thanks for the minute, for Scientific American 60-Second Science. I'm Amy Kraft.
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