What name is given to all baby marsupials?

The name given to all baby marsupials is joey. This term is used because all marsupials, including kangaroos, wallabies, and koalas, give birth to relatively underdeveloped young who are usually blind and hairless. As a result, these babies are often carried and nurtured within a pouch on their mother's abdomen, where they continue to develop and grow. This pouch-dwelling characteristic led to the universal use of the name "joey" to refer to all baby marsupials.