largest family of living sharks; found worldwide esp. in tropical waters; dorsal fin lacks spines: requiem sharks including tiger sharks and soupfin sharks.

 
  • 最大的鲨鱼科;世界各地都有,尤其是在热带水域;背鳍无刺;包含鼬鲨和油翅鲨的真鲨科。
今日热词
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