A marsupial is a mammal, but it is different to a placental mammal in several main ways.
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.
The main thing that makes the opossum different from other marsupials is that they are the only marsupial native to North America.
Monkeys are different than other animals because some monkeys can interact with other animals and humans. And other animals scare people away.
Marsupials are animals like koalas, kangaroos, wallabies, wombats, Tasmanian devils, possums or any other type of animal that has a pouch where the young (joeys) continue their development after they are born. Some marsupials, such as numbats, do not have pouches.
they have special pouches that they/ carry their babies in. Mammals like these are called marsupials.
uhm they have 8 legs.. and most animals have 4, or 2
Grassland animals eat grass. the other animals that are grassland animals like cheetahs that dont eat grass eat other grassland animals like gazzelles. grassland animals also need the temperature of the grasslands. Different animals live in different biomes.
The koala is a marsupial and, like most (not all) other marsupials, it has a pouch.Other marsupials include:wombat (the koala's closest relative)kangaroopossumgliderTasmanian devilnumbat (a marsupial without a pouch)quoll
It would be easier to answer which animals ARE marsupials, and to then conclude that all animals not on that list are not marsupials. Let's take that approach. Marsupials are mammals that tend to give birth to underdeveloped young. The offspring generally live within their mothers' pouches until they've grown out of their incredible fragility. So if it has a pouch, it's most likely a marsupial. Marsupials also are an interesting example within the context of evolution. The infraclass of marsupials only evolved somewhat recently, geologically speaking, and you can therefore find the overwhelming majority of all marsupials in the Australia and New Zealand areas. These islands are quite isolated from other large landmasses, so it makes sense that any class of species that evolved on them would stay relatively isolated on them. Think of an animal. If it has no pouch and is not native to this corner of the world, chances are very high that it is not a marsupial.
Sonar for one thing
Placental animals give birth to live young that have been nourished in the womb by the placenta.
Animals that have pouches belong to the class of mammals called Marsupials. Marsupials include kangaroos, bandicoots, wombats, banded anteaters, koalas, opossums, wallabies, Tasmanian devils, and many other species that I cannot name.
Wombats are Australian marsupials. Marsupials are a type of mammal.