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jie du ping bi hai zuo
Author(s): 
Pages: 46-48
Year: Issue:  5
Journal: Ocean World

Abstract: <正> 提起瓶鼻海豚(以下简称海豚),常听朋友们说:“这个我知道,不就是在海洋馆见到的那种最可爱、最聪明的鱼吗!”海豚的确是生活在大海中的,可如果你把它理解成鱼可就大错特错了。鱼的全身覆盖有鳞片、尾鳍是左右摆动的,而海豚则是全身光滑、尾鳍上下摆动的海洋哺乳动物。你想知
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