duck-billed platypus (Ornithorhynchus anatinus) Fig. 130. — Australian duck-mole (Ornithorhynchus paradoxus).
Title: Animal forms; a second book of zoology
Year: 1902 (1900s)
Authors: David Starr Jordan, 1851-1931; Harold Heath, 1868-
Subjects: Zoology
Source: https://commons.wikimedia.org/wiki/File:Animal_forms;_a_second_book_of_zoology_(1902)_(18008987700).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.