duck-billed platypus (Ornithorhynchus anatinus) Fig. 356. Duckbill, Ornithorhynchus paradoxus, from Lutken.
Title: Text book of vertebrate zoology
Year: 1899 (1890s)
Authors: Kingsley, J. S. (John Sterling Kingsley), 1854-1929
Subjects: Vertebrates; Anatomy, Comparative
Source: https://commons.wikimedia.org/wiki/File:Text_book_of_vertebrate_zoology_(1899)_(20761284281).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.