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A marsupial is often described as a pouched mammal, but this is not necessarily what defines it.
Marsupial young are born very undeveloped. Moving purely by instinct, the baby joey (the term for all marsupial young) makes its way to the mother's pouch, where the young joey latches onto a teat, remaining there to continue its growth and development.
Many marsupials have the mammary glands enclosed within a protective pouch. Although a mammal with a pouch is always a marsupial (with the exception of the echidna, which develops a rudimentary pouch during breeding season), not all marsupials have pouches, for example, the numbat of Western Australia.
All marsupials are mammals, but not all mammals are marsupials. Marsupials do not have advanced placentas, and have epipubic bones (with the exception of the marsupial mole). Epipubic bones are bones which project forwards from the pelvis. In the case of marsupials, these bones support the female's pouch, but there are other mammals which are not marsupials which also have epipubic bones. The excretory and reproductive systems of placental mammals and marsupials are also different.
Female marsupials have two vaginas, or what are called paired lateral vaginae. These are for the purpose of transporting the sperm to the womb, but there is a midline pseudovaginal canal for actually giving birth. As well as two vaginas and two uteruses, female marsupials have two fallopian tubes and two cervixes. Most male marsupials, with the exception of the largest species, the Red Kangaroo, Eastern Grey and Western Grey Kangaroos and one of the smallest species, the Honey Possum, have a two-pronged penis to accommodate the females' two vaginas.
What else can I help you with?
What group includes marsupials monotremes and placental animals?
Marsupials, monotremes and placental animals are members of the group known as mammals, or Mammalia.
How are kangaroos and opossums different?
Kangaroos and opossums both belong to the group of animals known as marsupials.
What mammal group do kangaroos koalas and possums belong in?
These animals are all classified in the mammal group known as marsupials.
What are animals with pouches called?
It is called a maripul. (Not sure if that's the right spelling) Marsupials. ^^
What group of animals do opossums belong to?
Opossums are mammals: specifically, they are marsupials.
What is the group of mammals called that kangaroos and koalas belong to?
Koalas, kangaroos, and opossums are marsupials.
Do marsupials kill farm animals?
No. Marsupials are not predators of farm animals.
What group of mammals do animals with pouches belong?
Animals with pouches are the marsupials and includes kangaroos, opossums, koalas, wombats, wallabies, Tasmanian devils, etc.
Are quolls predators?
Yes, quolls are predators. They belong to a group of animals known as the dasyurids, which are carnivorous marsupials. Quolls prey on smaller mammals and marsupials, birds, lizards and smaller snakes.
Which group of animals do koala bears come under?
Firstly, koalas are not bears. It is incorrect to refer to them as "koala bears".Koalas belong to the group of animals known as marsupials, and they are the only extant species in their family.
What is a group of warm blooded animals with fur or hair called?
All mammals including the sub groups marsupials and monotremes.
Are lizards marsupials?
Lizards are not marsupials, which are a sub-group of mammals. Lizards are reptiles.
