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cong fa xian si zuo hai zuo dao sheng wu jin hua zheng lun
Author(s): 
Pages: 30-33
Year: Issue:  12
Journal: Ocean World

Abstract: 十一月上旬,东京的科学家宣布最近有渔民捕获的一头宽吻海豚竟长有一对额外的后鳍,这有可能是后肢的残余部分。这对后鳍大概有成人的手掌那么大,它们远小于海豚的正常前肢,从其身体腹面接近尾部的地方向外突出。科学家针对海豚后鳍的成因问题展开了激烈的讨论。
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