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(5) 와인장 월넛
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wMiVEnzBydqsAfnsw |
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179 |
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| We'll need to take up references http://beeg-com.in.net/ beeq.com Previous research showed dolphins had personal whistles, but it was not clear that other members of the group learned that whistle. It wasn't until researchers mimicked distinct calls to a particular dolphin that they discovered its use. Dolphins called back when they heard their own "name." |
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Zachary |
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2019-09-26 12:00:40 |
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