The platypus is found only in Australia. The common echidna known as the short-beaked echidna lives in Australia, but the long-beaked echidna lives in New Guinea.
The platypus and echidna are recognised as egg-laying mammals. They are monotremes, which are egg-laying mammals.
The Platypus and the Echidna are the only mammals that are Oviparous.
Most mammals are not hatched from eggs. Only the monotremes, or egg-laying mammals, reproduce by external eggs. Monotremes include just the platypus, the long-beaked echidna and the short-beaked echidna.
The platypus and echidna are unusual because they are the world's only known monotremes, which means they are egg-laying mammals. Though egg-layers, they are classified as mammals because the young suckle mothers' milk.
The echidna is a monotreme, which is an egg-laying mammal. Most mammals give live birth, but only the echidna and platypus are egg-laying mammals.
The egg-laying mammals, or monotremes, are the platypus, the long-beaked echidna and the short-beaked echidna.
The platypus and the echidna are the world's only two known egg-laying mammals. They are classified as monotremes.
The platypus and echidna are unusual mammals because they are the world's only known monotremes, i.e. egg-laying mammals. Though egg-layers, they are classified as mammals because the young suckle mothers' milk.
The platypus and the echidna are the only two egg-laying mammals in existence. They are classed as monotremes.They are still classified as mammals because they feed their young on mothers' milk - a characteristic unique to mammals alone.
'Monotremes' lay eggs, - they are the 'platypus' and the 'echidna'.
The platypus and the echidna are both monotremes, that is, egg-laying mammals. There are actually three known species of egg-laying mammals, or monotremes. They are the platypus and short-beaked echidna of Australia, and the long-beaked echidna of Papua New Guinea. The echidna is sometimes called the spiny anteater.They are mammals because, like all mammals, they suckle their young on mothers' milk.
Only two mammals produce eggs, the echidna and the platypus.