A class of animals known as Marsupials is a characteristic feature of Australia. Marsupials are a unique group of mammals that are predominantly found in Australia, although some species can also be found in parts of South America and Papua New Guinea. They are distinguished by their unique reproductive system, where the females typically have a pouch in which they carry and nurse their young, called joeys. Some well-known examples of marsupials include kangaroos, koalas, wombats, and Tasmanian devils.