Blue-tongued skink or Blue-tongued lizard of Australia is a big skink which is native to Australasia. Normally, all the species of the Blue-tongued lizard have a unique distinction as they are easily recognised by their bright blue tongue which in nature is a warning to the predators to stay away from them. There are 6 different kinds of blue-tongued lizards in Australia.  All species are found on mainland Australia with the exception of Tiliqua gigas, which occurs in New Guinea and various islands of Indonesia.

With the exception of the pygmy blue-tongue, the Blue-rongued lizards of Australia are relatively large lizards (up to 45 cm total length), light-bodied, short-limbed, broad with distinct heads and dull teeth. Most species are diurnal ground-foraging omnivores, feeding on a wide variety of insects, gastropods, flowers, fruits and berries