Monotremes:
Platypus and echidna
Marsupials:
Kangaroo, koala, wombat, Tasmanian devil, possum, bilby, quoll, quokka, wallaby, dunnart, phascogale, bandicoot
Placental mammals:
Dog, cat, horse, antelope, camel, guinea-pig, mouse, pig, giraffe, elephant, bat, armadillo, cow
The two monotremes, or egg-laying mammals, in Australia are the platypusand the short-beaked echidna.
The correct name for the spiny anteater is echidna. The echidna and platypus are different from other mammals because they are the only egg-laying mammals. All other mammals, both placentals and marsupials, give live birth.
No marsupials lay eggs. The only egg-laying mammals are monotremes, and the species in Australia are the platypus and the short-beaked echidna. Both the short-beaked echidna and the long-beaked echidna are found on the island of New Guinea.
placenta which is between the mother and the embryo.
Marsupials essentially got their name from the fact that the proper name for a marsupial's pouch is marsupium. Most (not all) marsupials have such a pouch. Some marsupials have nothing more than a flap of skin which helps secure the developing joey in place.
Monotremes are the only mammals that lay eggs.Both platypuses and echidnas are monotremes. The name monotreme is derived from two Greek words meaning "one-holed", because they have just one external opening, the cloaca, for both waste elimination and for reproduction. The cloaca leads to the urinary, faecal and reproductive tracks, all of which join internally, and it is the orifice by which the female monotreme lays her eggs. This is different from other mammals, which have two openings - one for reproduction, and one for waste.
Marsupials.
The mammal group of egg layers are known as monotremes. The platypus and the echidna are both monotremes.
7 letter marsupials are:wallabydibblerningauibettongpotoroodunnartkultarr
Egg laying mammals are monotremes. They belong to the order monotremata.
Young marsupials go by the name of joey. A joey is any young marsupial, whether it be a kangaroo, wombat, koala, Tasmanian devil or any of the other 300 or so species of marsupials.
Monotremata is the scientific name for monotremes