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段落1

This is Scientific American 60-Second Science.I'm Sophie Bushwick. Got a minute?

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Chimps show other chimps how to use tools.

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My roommate showed me some tricks to make better scrambled eggs.

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Group members teaching each other is called cultural transmission.

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And a study finds that cultural transmission is behind the spread of a hunting technique among humpback whales off New England.

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The research is in the journal Science.

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It's called lobtail feeding: a humpback whale slaps the surface of the water with its tail.

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The resulting bubbles pen in prey fish, which the whales gobble up.

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Researchers first saw lobtail feeding in 1980.

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Within 30 years, 37 percent of observed humpbacks had picked up the technique.

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To create mathematical models for the spread of lobtail feeding, researchers used 27 years of data from whale-watching boats in the Gulf of Maine.

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And the models that included cultural transmission as a factor best matched the data.

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Those models assumed that humpback whales that spend more time with lobtail feeders were more likely to pick up the method themselves.

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Clearly, whales are capable of sophisticated social interactions,

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and we've only seen the tip of the tail.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.

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