段落1
This is Scientific American 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
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Ever look in the mirror first thing in the morning and say, I look like crap!
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Well, for some spiders, looking like poop can actually be a lifesaver.
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Because masquerading as a bird turd appears to protect certain arachnids from getting eaten by wasps.
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That's according to a study in the journal Nature Scientific Reports.
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Researchers were marveling over the plentiful bird doo they were seeing in a forest in Taiwan.
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Then they realized that some of those droppings were in fact speckled spiders sitting atop silky white discs at the center of their webs.
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Sure, this scatological costume might fool a bunch of PhDs.
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But do the predatory wasps fall for it?
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To find out, the researchers used a spectrometer to confirm that the spider in its web is spectrally indistinguishable from bird splat.
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Then they changed the coloring of some webs by dusting them with carbon powder.
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And they found that spiders that rested on the artificially blackened silk were much more likely to get eaten.
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Now, these results don't prove that wasps buy the whole poop act.
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Maybe spiders against the white background are just harder to spot.
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To be more confident that looking like poop is key, researchers might test the wasps to find out if they're just glad they didn't step in it.
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Thanks for the minute, for Scientific American 60-Second Science. I'm Karen Hopkin.
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1 / 16
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显示原文 =This is Scientific American 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
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2 / 16
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显示原文 =Ever look in the mirror first thing in the morning and say, I look like crap!
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3 / 16
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显示原文 =Well, for some spiders, looking like poop can actually be a lifesaver.
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4 / 16
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显示原文 =Because masquerading as a bird turd appears to protect certain arachnids from getting eaten by wasps.
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5 / 16
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显示原文 =That's according to a study in the journal Nature Scientific Reports.
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6 / 16
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显示原文 =Researchers were marveling over the plentiful bird doo they were seeing in a forest in Taiwan.
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7 / 16
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显示原文 =Then they realized that some of those droppings were in fact speckled spiders sitting atop silky white discs at the center of their webs.
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8 / 16
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显示原文 =Sure, this scatological costume might fool a bunch of PhDs.
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9 / 16
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显示原文 =But do the predatory wasps fall for it?
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10 / 16
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显示原文 =To find out, the researchers used a spectrometer to confirm that the spider in its web is spectrally indistinguishable from bird splat.
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11 / 16
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显示原文 =Then they changed the coloring of some webs by dusting them with carbon powder.
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12 / 16
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显示原文 =And they found that spiders that rested on the artificially blackened silk were much more likely to get eaten.
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13 / 16
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显示原文 =Now, these results don't prove that wasps buy the whole poop act.
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14 / 16
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显示原文 =Maybe spiders against the white background are just harder to spot.
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15 / 16
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显示原文 =To be more confident that looking like poop is key, researchers might test the wasps to find out if they're just glad they didn't step in it.
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16 / 16
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显示原文 =Thanks for the minute, for Scientific American 60-Second Science. I'm Karen Hopkin.
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- 单句循环：关
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- 单句循环：∞