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英语听力文摘 English Digest 701 动物也能用手语么?

时间:2022-11-23 02:38来源:互联网 提供网友:nan   字体: [ ]
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Can Animals Use Sign Language?

It’s time to go again to the A Moment of Science mailbag. A listener writes:

Dear A Moment of Science,

I know that gorillas1 and chimpanzees can learn sign language and use it to communicate. But can other animals use sign language, too?

Fish Sign Language?

Good question. And the answer is, maybe. To be clear, gorillas and chimps2 are the only animals that have so far been taught to use human sign language. But some other animals do seem to use a form of sign language, or at least use gestures to communicate with other species. Like, for example, fish.

Really? How can fish use sign language?

Fish Hunt Together

You know how some fish hunt in cooperation with other types of fish?

Scientists have found that these animals have ways of using gestures to communicate during a hunt. For example, when grouper and eels3 are on the prowl, grouper will sometimes position themselves where prey4 is hiding. And they do a sort of headstand and shake their head in the direction of the hidden prey. Taking the signal, eels then slither in and flush out the prey. Trout5 do something similar with octopuses6.

That’s cool, but does it really qualify as sign language?

It depends how you define it. But typically, scientists define a referential gesture as one that’s directed toward an object, isn’t used for an immediate7 mechanical purpose, is aimed at a recipient8, and is then used by that recipient to do something like chase or catch prey.


点击收听单词发音收听单词发音  

1 gorillas a04bd21e2b9b42b0d71bbb65c0c6d365     
n.大猩猩( gorilla的名词复数 );暴徒,打手
参考例句:
  • the similitude between humans and gorillas 人类和大猩猩的相像
  • Each family of gorillas is led by a great silverbacked patriarch. 每个大星星家族都由一个魁梧的、长着银色被毛的族长带领着。 来自《简明英汉词典》
2 chimps 2a09048610e52de775e2fe426c063f06     
(非洲)黑猩猩( chimp的名词复数 )
参考例句:
  • Chimps are too scarce, and too nearly human, to be routinely slaughtered for spare parts. 黑猩猩又太少,也太接近于人类,不可以作为人器官备用件说杀就杀。 来自英汉非文学 - 生命科学 - 医学的第四次革命
  • And as nonprimates, they provoke fewer ethical and safety-related concerns than chimps or baboons. 而且作为非灵长类,就不会产生像用黑猩猩或狒狒那样的伦理和安全方面的顾虑。 来自英汉非文学 - 生命科学 - 医学的第四次革命
3 eels eels     
abbr. 电子发射器定位系统(=electronic emitter location system)
参考例句:
  • Eels have been on the feed in the Lower Thames. 鳗鱼在泰晤士河下游寻食。
  • She bought some eels for dinner. 她买回一些鳗鱼做晚餐。
4 prey g1czH     
n.被掠食者,牺牲者,掠食;v.捕食,掠夺,折磨
参考例句:
  • Stronger animals prey on weaker ones.弱肉强食。
  • The lion was hunting for its prey.狮子在寻找猎物。
5 trout PKDzs     
n.鳟鱼;鲑鱼(属)
参考例句:
  • Thousands of young salmon and trout have been killed by the pollution.成千上万的鲑鱼和鳟鱼的鱼苗因污染而死亡。
  • We hooked a trout and had it for breakfast.我们钓了一条鳟鱼,早饭时吃了。
6 octopuses d5a93f5ab1e0649b2c2a607e16ad063b     
章鱼( octopus的名词复数 )
参考例句:
  • Snails and octopuses are molluscs. 蜗牛和章鱼是软体动物。
  • Limpets, snails and octopuses are mollusks. 帽贝、蜗牛和章鱼都是软体动物。
7 immediate aapxh     
adj.立即的;直接的,最接近的;紧靠的
参考例句:
  • His immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
  • We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。
8 recipient QA8zF     
a.接受的,感受性强的 n.接受者,感受者,容器
参考例句:
  • Please check that you have a valid email certificate for each recipient. 请检查是否对每个接收者都有有效的电子邮件证书。
  • Colombia is the biggest U . S aid recipient in Latin America. 哥伦比亚是美国在拉丁美洲最大的援助对象。
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