Echidna (Tachyglossidae), one of four peculiar egg-laying mammals found in Australia, Tasmania and New Guinea. They eat and breathe through a bald tube-like beak extending from their dome-shaped body. Covered with spines. Echidnas have round eyes and slits for ears, two small nostrils (or nostrils) at the end of their beak, and a small mouth. Electroreceptors in the skin of the beak sense electrical signals produced by the muscles of invertebrate prey. Echidnas are active day and night....
After experiencing the catastrophe at the end of the Mesozoic Era until modern times, there is still a primitive mammal hiding in Australia's "Utopia". This is the platypus living in Australia (and the echidna living on Irian Island. They already have hair on their bodies. They can keep warm;...