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1 .This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
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2 .Anyone who's ever had a cat knows how demanding they can be.
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3 .Let me out, let me in, give me food, give me different food.
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4 .The list goes on.
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5 .But how do these clever kitties convince us to do their bidding?
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6 .A study in the July 14 issue of Current Biology suggests it's all in how they ask.
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7 .Karen McComb of the University of Sussex started studying persuasive cat calls after realizing that her own pet used a hybrid between a purr and a cry to get her out of bed in the morning.
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8 .(sound)
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9 .McComb got recordings of other cat calls.
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10 .And back in the lab, she found that people thought purrs made by cats who were trying to solicit a snack were more urgent, and less pleasant, than those made when kitty was, say, relaxing on the sofa.
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11 .(sound)
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12 .Turns out that the "feed me" purr includes a high-frequency component, absent from the contented purr,
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13 .that makes people want to reach for a can opener just to make Fluffy stop.
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14 .It's obviously part of " Fluffy's Master Plan for World Domination."
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15 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.
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