7. Bottlenose dolphin (Tursiops truncatus) is mammal, order Cetacea. It lives in seas worldwide, mostly in temperate and warm, but can be found also in Artic and Antarctic Ocean.
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- 宽吻海豚是哺乳纲,鲸目海豚科的一种。它通常生活在世界上气候温热的海域,但是在南北冰洋也发现了它的踪迹。收藏指正