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Monotremes (/ ˈmɒnətriːmz /) are mammals of the order Monotremata. They are the only group of living mammals that lay eggs, rather than bearing live young. The extant monotreme species are the platypus and the four species of echidnas.
Monotreme, any member of the egg-laying mammalian order Monotremata, which includes the amphibious platypus and the terrestrial echidnas of continental Australia, the Australian island state of Tasmania, and the island of New Guinea. It is the most ancient living order of mammals.
The class Mammalia (mammals) is divided into two subclasses based on reproductive techniques: egg-laying mammals (yinotherians or monotremes - see also Australosphenida), and mammals which give live birth (therians).
Monotremes (monotremata) are a unique group of mammals that lay eggs, unlike placental mammals and marsupials, who give birth to live young. Monotremes include several species of echidnas and the platypus.
Monotremes are a special group of mammals who lay eggs instead of giving live birth. Monotremes are pretty rare – scientists only recognize a few living species – so many people have never heard of the term.
Monotremes are the only mammals that lay eggs to reproduce (oviparous), a form that diversified from the traditional live-bearing ones, which includes marsupials and eutherians. However, like other mammals, they possess body hair and mammary glands and are endothermic or warm-blooded.
Monotremes, however, are a particular kind of mammals who lay eggs. In fact, they are oviparous who lay between one to three eggs just in the same manner as do birds. Monotremes are divided into two broad categories. That is dark billed flat-footed platypus and spiny anteater called echidnas.
There are just five known mammals in the world that share a surprising trait: they lay eggs and feed milk to their babies (or puggles as they're known). In the scientific world, this is called a...
Information about monotremes, including their evolution, characteristics, and examples of species.
The egg-laying mammals are called monotremes. Under this mammalian order are five creatures — platypus and four species of echidna. The other two types of mammals are marsupials and placentals.