The unicorns of the sea, Monodon monoceros are members of the order Cetacea, along with whales, dolphins and porpoises.

身洋中的独角兽，它们与鲸鱼、豚和鼠豚一样，属于鲸类纲。

As the turtle swims across the oceanarium,the first porpoise swoops down from above and butts his shell with his belly.

在另一次游戏中，当龟游过水族馆时，第一只豚从上下去，并用腹部撞击龟壳。