What is a marsurpal?

A marsupial is a type of mammal characterized by bearing live young that typically complete their development in a pouch. This group includes well-known species such as kangaroos, koalas, and opossums. Marsupials are primarily found in Australia and nearby islands, although the opossum is native to the Americas. They exhibit a wide range of sizes and ecological roles, from tree-dwelling to ground-dwelling lifestyles.