科学美国人60秒:鸟类学习同伴语言保护自身安全
日期:2019-02-25 11:39

(单词翻译:单击)

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听力文本

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This is Scientific American — 60-Second Science. I'm Christopher Intagliata.
People speak thousands of languages in the world today. And same goes for the bird world.
"Each bird species has effectively its own language." Andy Radford, a professor of behavioral ecology at the University of Bristol. "And there might be similarities between some languages just as there are in the human world. And then there are other languages that sound extremely different, even though they're conveying exactly the same meaning."
In fact some birds are known to pick up on the "language" of other species...in particular, they've learned to detect danger by eavesdropping on the alarm calls of other birds.
Radford and his colleagues wanted to investigate how that learning occurs. So they first played an alarm call that fairy wrens, an Australian bird, shouldn't be familiar with - a computer-generated alarm call (synthetic call) meant to mimic a bird's. As expected, the unfamiliar sound had no effect on the fairy wrens.

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But then the researchers paired the synthetic call with a chorus of alarm calls the wrens would recognize. (chorus) And after this training, the sound of the initially unfamiliar synthetic call alone (synthetic call) was enough to send the birds ducking HA! for cover. The results are in the journal Current Biology.
Radford says the study shows birds can learn from their peers, without ever seeing them...or a predator either. "And so I think that's the coolest thing of all, is that you can learn with your eyes shut about something really important in the natural world."
Thanks for listening for Scientific American — 60-Second Science. I'm Christopher Intagliata.

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参考译文

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这里是科学美国人——60秒科学sCH|Dceo&z#nu9T*Kq|。我是克里斯托弗·因塔利亚塔bSmA^[6f,b
有一分钟时间吗?
今天,全世界人类使用的语言有几千种Kx&xG1SjLPbRB,。鸟类世界也是如此#iYxOBT%Dk
“实际上每种鸟类都有自已的语言x#R^7LarXuZX。”布里斯托大学的行为生态学教授安迪·拉德福德说到!]]H+*B[5h.AWMZ)zw~L。“一些鸟类语言可能很相似,就像人类世界一样kzq8XTW38IQuZBEk#。其他语言则听起来极为不同,尽管它们表达的是同样的含义3h%N[d|gGo。”
事实上,我们已经知道有些鸟类学会了其他鸟类的“语言”,特别是它们学会了通过偷听其他鸟类的警报叫声来察觉危险ITi^E1#ay9O4lC!bF
拉德福德和同事想研究这种学习的发生过程=R+odHl=K5#Zwk=XG。因此,他们首先播放了一种澳大利亚细尾鹩莺不可能熟悉的警报叫声,这一由计算机生成的警报叫声(计算机合成的叫声)对鸟类的声音进行了模仿PKUO-360MN[O。不出所料,这种陌生的叫声对细尾鹩莺没有任何影响D|^aZ;z3Qcxh^h5ZJ
但随后,研究人员将电脑合成的叫声与细尾鹩莺能识别出的警报叫声和声组合在一起ArT_31u=&cy~l。(和声)经过这种训练,细尾鹩莺一开始不熟悉的合成叫声本身(合成叫声),就足以让这些鸟儿闪避躲藏d[XQX)0wZ%L.lvwg!0t。这项研究结果发表在《当代生物学》期刊上t~V&^C@CPO
拉德福德表示,这项研究表明,鸟儿可以向同伴学习,即使从来没有看到过同伴或捕食者QV.^s*iTm&9dQ]Vb_。“所以,我认为最酷的地方在于,闭上眼睛学习自然界中真正重要的东西;|0*VG2%GM;c%5Y)gN。”
谢谢大家收听科学美国人——60秒科学2L#=jj!G^9。我是克里斯托弗·因塔利亚塔_UPjZUr]JNQ(.l[.y

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译文为可可英语翻译,未经授权请勿转载!

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重点讲解

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重点讲解:
1. go for 适用于;
The same goes for your job.
这同样适用于你的工作8MqAOPa876-y
2. even though 即使;尽管;纵然;
All the men were being deported even though the real culprits in the fight have not been identified.
尽管真凶尚未查出,所有参与斗殴的男子均被驱逐出境3OFEl8Yy#*g3n!BFZ
3. in particular 尤其;特别;
I think a lot of people, women in particular, steer clear of these sensitive issues.
我认为很多人,特别是女性,都会回避这些敏感问题0]r[Kf]-pcX5t
4. be familiar with 熟悉;熟知;
We are very familiar with each other.
我们相互之间很熟L[-Q6f7_TYwGJCKH3A

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重点单词
  • effectivelyadv. 事实上,有效地
  • extremelyadv. 极其,非常
  • investigatev. 调查,研究 [计算机] 研究
  • mimicadj. 模仿的,假的 [计算机] 模拟的 vt. 模仿
  • unfamiliaradj. 不熟悉的
  • speciesn. (单复同)物种,种类
  • currentn. (水、气、电)流,趋势 adj. 流通的,现在的,
  • syntheticadj. 综合的,合成的,人造的 n. 人工制品
  • initiallyadv. 最初,开头
  • particularadj. 特殊的,特别的,特定的,挑剔的 n. 个别项目