Native Species:
* Bats: Australia has a rich bat fauna, with over 90 species of microbats and megabats. These include:
* Grey-headed Flying-fox (Pteropus poliocephalus)
* Spectacled Flying-fox (Pteropus conspicillatus)
* Little Red Flying-fox (Pteropus scapulatus)
* Gould's Wattled Bat (Chalinolobus gouldii)
* Rodents: There are a few native rodent species, including:
* Australian Black-footed Tree Rat (Mesembriomys macrurus)
* Bush Rat (Rattus fuscipes)
* Insectivores:
* Australian Water Rat (Hydromys chrysogaster)
* Eastern Water Rat (Hydromys castaneus)
Introduced Species:
* Rats:
* Black Rat (Rattus rattus)
* Brown Rat (Rattus norvegicus)
* Mice:
* House Mouse (Mus musculus)
* Cats:
* Domestic Cat (Felis catus) (Feral cats are a major threat to Australian native wildlife)
* Dogs:
* Dingo (Canis lupus dingo) (A semi-domesticated dog that is considered native to Australia)
* Other:
* Red Fox (Vulpes vulpes) (Introduced in the 19th century)
Important Notes:
* Marsupials dominate: The vast majority of mammals in Australia are marsupials, not placentals.
* Introduced species: Many of the placental mammals in Australia are introduced species, some of which have become invasive and pose a threat to native wildlife.
* Bats are a significant exception: Bats are the most diverse and numerous group of placental mammals in Australia. They play important roles in pollination and insect control.
I hope this information is helpful!