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SSS 2012-02-29

时间:2012-03-19 06:31来源:互联网 提供网友:gmeng   字体: [ ]
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    (单词翻译:双击或拖选)

 This is Scientific American 60 Second Science, I am Mariette DiChristina. Got a minute?

 
Maybe you've heard that sound. It's an Orca, a killer1 whale. We know that whales have a kind of language. Families and closely related groups even share dialects.
 
Are they letting members of the pod know where the food is, crooning a romantic ballad2 to a potential mate, or something else altogether? That's what researchers want to know--and where citizen scientists come in.
 
The first step in understanding whale talk is cataloging the calls. You might organize your messy drawer by matching up the socks--at our website, citizen scientists can match up the whale calls. You listen to an uncategorized call, then find one that it sounds like it [similar sound].
 
So far, more than 5,000 volunteers have matched 100,000 calls. That effort would have taken professionals years. The data will help answer questions like: How many kinds of calls do whales make? And: What does the number of calls say about intelligence? The studies will also help researchers develop guidelines to reduce the impact of man-made sounds on marine3 life. To lend us your ears, just go to whale.scientificamerican.com
 
Thanks for the minute for Scientific American, I'm Mariette DiChristina.

点击收听单词发音收听单词发音  

1 killer rpLziK     
n.杀人者,杀人犯,杀手,屠杀者
参考例句:
  • Heart attacks have become Britain's No.1 killer disease.心脏病已成为英国的头号致命疾病。
  • The bulk of the evidence points to him as her killer.大量证据证明是他杀死她的。
2 ballad zWozz     
n.歌谣,民谣,流行爱情歌曲
参考例句:
  • This poem has the distinctive flavour of a ballad.这首诗有民歌风味。
  • This is a romantic ballad that is pure corn.这是一首极为伤感的浪漫小曲。
3 marine 77Izo     
adj.海的;海生的;航海的;海事的;n.水兵
参考例句:
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时,他自愿参加了海军陆战队。
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