Dugong

(noun.) sirenian tusked mammal found from eastern Africa to Australia; the flat tail is bilobate.

格罗夫斯整理

• No one regards the external similarity of a mouse to a shrew, of a dugong to a whale, of a whale to a fish, as of any importance. 查尔斯·达尔文. 物种起源.

戴夫校对