duck-billed platypus (Ornithorhynchus anatinus) Fore and hind foot of the ornithorhynchus
Date 1880
Source Popular Science Monthly Volume 17
Author Unknown
Source: https://commons.wikimedia.org/wiki/File:PSM_V17_D790_Fore_and_hind_foot_of_the_ornithorhynchus.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.