Ornithorhynchus anatinus is a mammal of the genus Ornithorhynchus (ornithorhynchus) is a mammal of the genus Monotreme, Platypus, and the genus Platypus, found in the eastern part of Australia and the island of Tasmania.

Platypus is a single-perforate and one of the oldest mammals. Monoplasmopods are oviparous mammals, and there are several species of echidnas in addition to platypus.
The platypus has a duck beak, and european biologists who saw the platypus specimen thought it was a hoax made up of a patchwork of animal carcasses.
It is true that platypuses are very chic in appearance, and they are also one of the few poisonous mammals. The platypus has a spike in the hind ankle, and this thorn of the male platypus can secrete toxins, although it is not fatal to humans, but it can improve the sensitivity of pain, and it is enough to prick it.
Although platypus are mammals and have mammary glands, they have no nipples and the cubs need to feed on the lactation holes in the female platypus's abdomen.
Platypus is a carnivore, and its staple diet is a variety of small fish, worms, insects, small crustaceans, etc. Platypus will dig out its prey in the mud and sand at the bottom of the river and carry it ashore to eat.
Platypus burrows on the banks of rivers and uses plants such as fallen leaves and reeds by the river to make bedding for their nests, and they sleep an average of more than ten hours a day.
Because of its unique shape, the platypus has appeared in many anime games and film and television works around the world, the most famous of which is the duck, which is simply cute and crying.
Currently, platypus has an iucn rating of Near Threatened (NT).