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This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?
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Biologists used to think turtles belonged to the "silent majority" of reptiles, meaning if turtles made sounds, no one was listening.
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One reptile guide from the 1950s went so far as to call them, quote, "deaf as a post."
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But it turns out scientists just weren't listening hard enough.
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Because in recent years, biologists have identified at least 11 different sounds in the turtle repertoire recorded both in and out of the water.
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But what do they mean?
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In the latest attempt to decode turtle talk, researchers tailed giant South American river turtles, Podocnemis expansa in Brazil, over a two-year span.
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They recorded 220 hours of audio, capturing six of those 11 sounds.
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Two of the calls were extremely common, occurring during just about every turtle activity.
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Other calls the turtles made only during migration, or while nesting at night.
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The findings appear in the journal Herpetologica.
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The researchers still aren't sure what any of these sounds actually mean, or whether turtles can recognize each other by voice alone.
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All the more reason, they say, to use these sounds in playback experiments , which might get these talking turtles out of their shells.
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Thanks for the minute, for Scientific American 60-Second Science. I'm Christopher Intagliata.
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1 / 14
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显示原文 =This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?
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2 / 14
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显示原文 =Biologists used to think turtles belonged to the "silent majority" of reptiles, meaning if turtles made sounds, no one was listening.
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3 / 14
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显示原文 =One reptile guide from the 1950s went so far as to call them, quote, "deaf as a post."
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4 / 14
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显示原文 =But it turns out scientists just weren't listening hard enough.
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5 / 14
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显示原文 =Because in recent years, biologists have identified at least 11 different sounds in the turtle repertoire recorded both in and out of the water.
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6 / 14
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显示原文 =But what do they mean?
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7 / 14
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显示原文 =In the latest attempt to decode turtle talk, researchers tailed giant South American river turtles, Podocnemis expansa in Brazil, over a two-year span.
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8 / 14
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显示原文 =They recorded 220 hours of audio, capturing six of those 11 sounds.
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9 / 14
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显示原文 =Two of the calls were extremely common, occurring during just about every turtle activity.
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10 / 14
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显示原文 =Other calls the turtles made only during migration, or while nesting at night.
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11 / 14
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显示原文 =The findings appear in the journal Herpetologica.
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12 / 14
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显示原文 =The researchers still aren't sure what any of these sounds actually mean, or whether turtles can recognize each other by voice alone.
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13 / 14
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显示原文 =All the more reason, they say, to use these sounds in playback experiments , which might get these talking turtles out of their shells.
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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 Christopher Intagliata.
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- 单句循环：关
- 单句循环：×3
- 单句循环：×5
- 单句循环：∞