首度观察到野生海豚对港湾鼠海豚“说话”

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一只真海豚在苏格兰的海域嬉戏
。学者观察到一只名为凯莉的野生独居海豚可以像港湾鼠海豚那样发声。 PHOTOGRAPH BY SCOTLAND: THE BIG PICTURE, MINDEN PICTU