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1 .This is Scientific American 60-Second Science. I'm Sabrina Imbler. Got a minute?
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2 .
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3 .To our knowledge, there's no correlation between a man's singing ability and his care and attentiveness as a father.
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4 .But any Pavarotti among the nightingales will serenade his mate while she sits on her eggs.
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5 .And after they hatch he will visit the nest about 16 times each hour to feed their offspring.
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6 .Because, among nightingales at least, the best singers also make the best fathers.
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7 .So finds a study in the journal BMC Evolutionary Biology.
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8 .Some 80 percent of birds practice biparental care, meaning both the male and female rear their offspring together.
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9 .So it's crucial for a female bird to pick as a mate the most promising father, both genetically and behaviorally.
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10 .Female birds look for signs of fitness that range from the flamboyant plumage of the peacock to the bizarre dances of birds of paradise.
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11 .And for nightingales, it's the most elaborate song that apparently wins the day.
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12 .The average male has some 180 tunes in his repertoire.
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13 .These avian Sinatras vocalize highly variable song types including buzzes, whistles and trills.
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14 .And such virtuoso singing seems to signal the female that this is a guy she can count on.
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15 .That is, when it's time to help raise the kids, he's not a flight risk.
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16 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sabrina Imbler.
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