Fig. 55.—Duck-billed Platypus. Ornithorhynchus anatinus. × 1⁄6.
Date 1902
Source The Cambridge Natural History, Volume X—Mammalia.
Author Frank E. Beddard
Source: https://commons.wikimedia.org/wiki/File:Cambridge_Natural_History_Mammalia_Fig_055.jpg
The platypus or duck-billed platypus (Ornithorhynchus anatinus) is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania. It is one of the extant species of monotremes, the only mammals that lay eggs instead of giving birth.