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托福听力练习-科学美国人60秒:海豚有名字

2017-03-04 15:50:00来源:科学美国人60秒

点击查看>>科学美国人60秒音频:海豚有名字

  科学美国人60秒中英文翻译:海豚有名字

  科学美国人60秒英文文本

  Many animals use sounds to convey information. [Sound of wolf howl] Humans use particular vocal labels for objects and for people. We call these words, and names.

  A few creatures, such as parrots and dolphins, can learn specific vocal labels. And wild dolphins are known to have particular, individual signature whistles. Scientists at Scotland’s St. Andrews University wanted to know: can these whistles be used as labels?

  The researchers analyzed sounds from dolphins off Scotland’s east coast, and extracted these signature whistles. [Dolphin whistle sound] Then they altered the sounds so the calls wouldn’t sound exactly like the originating dolphin. [Altered dolphin whistle]

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