The numbat (Myrmecobius fasciatus) is an insectivorous marsupial native to Western Australia and recently re-introduced to fenced reserves in South Australia and New South Wales. The species is also known as the noombat or walpurti. Its diet consists almost exclusively of termites. Once widespread across southern Australia, its range is now restricted to several small colonies and it is considered an endangered species. The numbat is an emblem of Western Australia and protected by conservation programs.

The numbat is a small, colourful creature between 35 and 45 centimetres (14 and 18 in) long, including the tail, with a finely pointed muzzle and a prominent, bushy tail about the same length as its body. Colour varies considerably, from soft grey to reddish-brown, often with an area of brick red on the upper back, and always with a conspicuous black stripe running from the tip of the muzzle through the eyes to the bases of the small, round-tipped ears. Between four and eleven white stripes cross the animal's hindquarters, which gradually become fainter towards the midback. The underside is cream or light grey, while the tail is covered with long, grey hair flecked with white. Weight varies between 280 and 700 g (9.9 and 24.7 oz).

Like many ant or termite eating animals, the numbat has a long and narrow tongue coated with sticky saliva produced by large submandibular glands. A further adaptation to the diet is the presence of numerous ridges along the soft palate, which apparently help to scrape termites off the tongue so they can be swallowed. The digestive system is relatively simple, and lacks many of the adaptations found in other entomophagous animals, presumably because termites are easier to digest than ants, having a softer exoskeleton. Numbats are apparently able to gain a considerable amount of water from their diets, since their kidneys lack the usual specialisations for retaining water found in other animals living in their arid environment. Numbats also possess a sternal scent gland, which may be used for marking their territories.

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