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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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2 .Music is a tough way to make a living.
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3 .Just ask the túngara frog.
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4 .Its song can get it killed.
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5 .Because the motion of its vocal sac when it produces its call also creates ripples in the surrounding water that predators can see.
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6 .To see how rivals and predators respond, researchers built decoys that produced mating calls, ripples or both.
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7 .When rival males heard the song and saw ripples, they doubled their competitive cries.
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8 .But if the ripples came from less than 8 centimeters away, the rivals grew quiet, perhaps preparing to fight or flee.
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9 .Meanwhile, predatory bats preferred to attack when the model produced both audio and visual cues.
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10 .But bats also reacted to ripples alone.
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11 .Now, túngara frogs shut up fast when a bat's overhead.
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12 .But the water's continuing rippling can give the frogs away.
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13 .The work is in the journal Science.
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14 .Seems that some animal communication is multi-sensory,
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15 .and a signal's side effect can have unintended consequences.
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16 .Like turning a love note into a death rattle.
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17 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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