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科学美国人60秒:研究证明绵羊具有面部识别能力

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This is Scientific American — 60-Second Science. I'm Christopher Intagliata.
Here's one of the stranger celebrity sightings out there: Researchers have confirmed that sheep can recognize the actors Emma Watson and Jake Gyllenhaal.
"Yeah I think it's very cool." Jennifer Morton is a neurobiologist at the University of Cambridge. "The reason we chose celebrities is we were sure they'd never met these people."
The experiment worked like this. First, Morton's team trained eight sheep to recognize the famous faces. And the sheep correctly chose the celeb's face over a stranger's 80 percent of the time.
Next they presented faces at a slight angle. The sheep got only two-thirds of those right. But that's far on par with how human performance dips for the same task.

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Proving that sheep have advanced facial recognition skills, the scientists say...comparable to humans or our primate cousins. The study is in the journal Royal Society Open Science.
If you're wondering, "Why sheep?"
"Sheep chose me rather than the other way around." There's a good model of Huntington's disease in sheep. So Morton says studying cognitive tasks like facial recognition in sheep—and the decline in those abilities in Huntington's sheep—might offer insights into the human condition, too.
Thanks for listening for Scientific American — 60-Second Science. I'm Christopher Intagliata.

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重点单词   查看全部解释    
celebrity [si'lebriti]

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n. 名人,名誉,社会名流

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technique [tek'ni:k]

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n. 技术,技巧,技能

 
slight [slait]

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adj. 轻微的,微小的,纤细的,脆弱的
vt

 
advanced [əd'vɑ:nst]

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adj. 高级的,先进的

 
recognize ['rekəgnaiz]

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vt. 认出,认可,承认,意识到,表示感激

 
primate ['praimit]

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n. 灵长目动物 n. (常大写)首席主教 n. 首领

 
comparable ['kɔmpərəbl]

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adj. 可比较的,比得上的

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recognition [.rekəg'niʃən]

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n. 认出,承认,感知,知识

 
cognitive ['kɔgnitiv]

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adj. 认知的,认识的,有认识力的

 
confirmed [kən'fə:md]

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adj. 习惯的,积习的,确认过的,证实的 动词conf

 

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