where their unique lobed fins are a distinct advantage. 在那里 它们独特的叶鳍是一种明显的优势
Its fins have, in effect, become feet. 它的鳍实际上相当于脚
it fans out its fins to disorientate its prey. 它会展开鳍来迷惑猎物
To herd their prey, the predators raise their huge dorsal fins. 旗鱼张开大大的背鳍来把猎物赶到一起
A gurnard. It's huge pectoral fins disguise it's shape 这条鲂鱼,它的巨大的胸鳍给它提供了很好的伪装
keeping their grip with microscopic hooks on their fins. 它们用鳍上的小钩紧紧抓住岩壁