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This is Scientific American 60-Second Science. I'm Gretchen Cuda Kroen. Got a minute?
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A lot of fishermen will tell you that fish have kind of a sixth sense.
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They avoid obstacles, effortlessly slalom between vortices or whirlpools, and hide from predators, even when they can't see.
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But how do they do it?
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Researchers from the University of Florida and New York University think they've found the answer.
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Nearly all fish, they say, have a similar network of sensors along their bodies that are exquisitely sensitive to changes in water pressure.
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The report is in the journal Physical Review Letters.
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For the study, the researchers made a plastic rainbow trout with an accurate configuration of flow sensors on its body.
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Known as the "lateral line," these sensors apparently act like a hydrodynamic antenna, picking up signals about the flow of water around them.
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They put the fake fish in water, and simulated important real-life situations,
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for example, a bigger fish swimming nearby that might want to turn the trout into sushi.
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The researchers noted that the natural setup of the fish's sensors includes a higher density of them on the parts of the body subject to the greatest pressure changes.
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So the sensory awareness of its environment is highly resolved, showing that the notion that fish have a sixth sense isn't fishy at all.
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Thanks for the minute, for Scientific American 60-Second Science. I'm Gretchen Cuda Kroen.
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1 / 14
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显示原文 =This is Scientific American 60-Second Science. I'm Gretchen Cuda Kroen. Got a minute?
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2 / 14
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显示原文 =A lot of fishermen will tell you that fish have kind of a sixth sense.
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3 / 14
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显示原文 =They avoid obstacles, effortlessly slalom between vortices or whirlpools, and hide from predators, even when they can't see.
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4 / 14
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显示原文 =But how do they do it?
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5 / 14
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显示原文 =Researchers from the University of Florida and New York University think they've found the answer.
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6 / 14
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显示原文 =Nearly all fish, they say, have a similar network of sensors along their bodies that are exquisitely sensitive to changes in water pressure.
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7 / 14
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显示原文 =The report is in the journal Physical Review Letters.
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8 / 14
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显示原文 =For the study, the researchers made a plastic rainbow trout with an accurate configuration of flow sensors on its body.
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9 / 14
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显示原文 =Known as the "lateral line," these sensors apparently act like a hydrodynamic antenna, picking up signals about the flow of water around them.
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10 / 14
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显示原文 =They put the fake fish in water, and simulated important real-life situations,
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11 / 14
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显示原文 =for example, a bigger fish swimming nearby that might want to turn the trout into sushi.
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12 / 14
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显示原文 =The researchers noted that the natural setup of the fish's sensors includes a higher density of them on the parts of the body subject to the greatest pressure changes.
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13 / 14
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显示原文 =So the sensory awareness of its environment is highly resolved, showing that the notion that fish have a sixth sense isn't fishy at all.
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14 / 14
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显示原文 =Thanks for the minute, for Scientific American 60-Second Science. I'm Gretchen Cuda Kroen.
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- 单句循环：关
- 单句循环：×3
- 单句循环：×5
- 单句循环：∞