
Platypuses have thick brown fur, which traps an insulating layer of air next to their skin. Males grow to a length of about 60cm, females 50cm. Males have a venomous spur on the inside of their hind leg.
The soft bill of the Platypus resembles that of a duck, but is covered with soft, leathery skin containing sensitive nerves that can detect faint electrical fields generated by small aquatic animals that they prey on. This electroreception is unique among mammals.
Platypuses are most active early morning and late evening and spend most of the day in a burrow. The front paws are webbed and are used like paddles. When swimming, the eyes and ears are closed, and the sensitive bill sweeps from side to side searching for electrical impulses of their prey. Platypuses can stay underwater for several minutes and store food in their cheeks before coming to the surface to grind it up and swallow.
Litter from humans, such as plastic bags or fishing lines, can trap and kill platypuses
Monotremata
Ornithorhynchidae
Ornithorhynchus anatinus