What are two kinds of special mammals that Australia has?

Two kinds of special mammals that Australia has are:

1. Monotremes: Monotremes are mammals that lay eggs instead of giving birth to live young. There are only five species of monotremes in the world, and all of them are found in Australia. The most well-known monotremes are the platypus and the echidna.

2. Marsupials: Marsupials are mammals that give birth to underdeveloped young that continue to develop in a pouch on the mother's body. There are over 300 species of marsupials in the world, and about 200 of them are found in Australia. The most well-known marsupials are the kangaroo, the koala, and the wombat.