Quokkas come from the same family as the kangaroo (called Macropodidae) and they live on a handful of small Australian islands such as Rottnest Island and Bald Island. They can live for up to ten years, and just like other Macropods, the quokka is herbivorous and mainly nocturnal.
The tiger quoll is listed by the IUCN on the Red List of Threatened Species with the status "near threatened". The Australian Department of the Environment and Heritage considers the northern subspecies D. m. gracilis as endangered. This species is vulnerable to decline because it requires certain climates and habitats, it tends to live in low densities, it is likely to compete with introduced predators and requires lots of space, and it does not live very long