SSS 2012-02-10
时间:2012-03-19 05:56:29
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(单词翻译)
This is scientific Americans, 60 second science, I'm Sarah Fecht. Got a minute
That’s not a bird whistling. This sound was recorded 2000 feet below the ocean’s surface.
Scientists
postulated1 decades ago that deep-sea animals
might use sound to
navigate2 and communicate. But until now, no one had really tried to listen in.
That’s why
marine3 ecologist Rodney Rountree, from the University of Massachusetts Amherst,
decided4 to turn a few mp3 players into
waterproof5, deep-sea
recording6 devices. He and his colleagues attached one device to each of 100
crab7 traps, and sent them to the sea floor for 24 hours.
After dredging up the traps and listening to the
recordings8, the team discovered a multitude of deep-sea sounds, including 12 they could not identify and which had probably never been heard before.
Rountree wants to send down video cameras along with the recording devices, in order to identify which species are making these strange sounds. Just like a birder uses his eyes and his ears to study bird species, Rountree hopes that eventually ecologists will be able to use sound to locate and learn more about marine species.
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