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There are plenty of stories of cetaceans saving humans .

鲸类动物救人的故事有很多。

Roughly speaking , these animals filled the ecological niches now occupied by toothed cetaceans such as dolphins and killer whales .

大致上讲，这些动物填补了由现代齿鲸目动物海豚和虎鲸所占据的生态龛位。

Cetaceans are not created to decorate the immense chaotic oceans or to offer poets or littrateurs aspirations or inspirations . Nor does falconry soar towards the empyrean and scud in the firmament to demonstrate his almightiness .

上帝创造鲸鱼，并不是为了点缀那广漠无垠喧嚣混沌的海洋，也不是为了激发诗人或者文人骚客的灵感或者情感;鹰击长空，掠过天宇也不是为了证明自然的威力。

Any of various similar cetaceans , such as the killer whale .

虎鲸多种类似的鲸类动物中的任一种，如虎鲸。

Like other cetaceans , aiwhas filter food through the sieve-plates in their baleen .

像其他鲸类动物一样，艾华兽用鲸须中的筛板滤食食物。