Gruntle is a small, solitary mammal found in the Central Highlands of New South Wales. It is a primitive marsupial that is about the size of a house cat, although its fur is generally sparse. Gruntle is the only known native mammal in the area, and it is a threatened species.

Gruntle is a shy animal that spends much of its time underground or in dense vegetation. It is largely nocturnal, and its diet consists primarily of insects and other small animals.