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1 .This is Scientific American 60-Second Science. I'm Amy Kraft. Got a minute?
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2 .A relaxing day at the beach.
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3 .Then suddenly the peace is shattered, by the sound of ships.
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4 .It can sour your mood.
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5 .Now a study in the journal Biology Letters finds that noisy ships make crabs crabby, too.
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6 .Researchers exposed different-sized shore crabs to either ship noise or ambient harbor noise.
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7 .The crabs that contended with the annoying ship sounds had higher metabolic rates than did their companions, an indicator of stress.
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8 .And the larger crabs were put out the most.
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9 .Stressed crabs burn calories faster, which can stunt their growth in fisheries.
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10 .Stressed wild crabs with increased appetites might need to travel to expand their feeding grounds, which raises their risk of running into predators.
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11 .The research suggests that crabs aren't the only sea-dwelling species peeved by the noise, either.
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12 .Companies are exploring ways to design quieter ships, in the hope of offering crabs and other marine life some peace and quiet.
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13 .Thanks for the minute, for Scientific American 60-Second Science. I'm Amy Kraft.
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