Why animals help each other - Ashley Ward
Education
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7
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These humpback whales have already covered thousands of kilometers
이 혹등고래는 이미 수천 킬로미터를 이동했습니다
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Transcript
These humpback whales have already covered thousands of kilometers
이 혹등고래는 이미 수천 킬로미터를 이동했습니다