Monotremes are egg-laying mammals. The only monotremes in the world are the echidna and the platypus, both native only to Australia and New Guinea. There is one species of platypus, and two species of echidna: the short-beaked echidna of Australia and the long-beaked echidna of New Guinea. There are three sub-species of long-beaked echidna.
Monotreme means "one opening" as they have only one opening for faeces, urine and the laying of eggs. They are also the only mammals to lay eggs.
Monotremes, marsupials, and placentals
Most mammals are placental...marsupial mammals and monotremes are not placental.
The platypus and the echidna are the only living examples of monotremes, or egg-laying mammals.
All mammals except for monotremes are viviparous. Monotremes are platypuses and echidnas: therefore, any mammal that is not a platypus or echidna is viviparous. Actual examples would be cats, dogs, horses, kangaroos, koalas, gerbils, gophers, beavers, dolphins, whales, rats, shrews, porcupines, armadillos, etc.
Yes, monotremes are real.
No a Blue Whale is Not a monotremes.
Monotremes never eat their young.
No. The koala is an example of a marsupial. The only two examples of monotremes, or egg-laying mammals, are the platypus and te echidna.
Monotremes are egg laying mammals, the platypus and the echidna are the only two monotremes.
Monotremes are mammals; therefore they have lungs, not gills.
Eutherians and monotremes are in the phylum Chordata.
No, monotremes do not have short internal development.