Blue-tongued skinks comprise the Australasian genus Tiliqua, which contains some of the largest members of the skink family (Scincidae). They are commonly called blue-tongued lizards or simply blue-tongues or blueys in Australia. As suggested by these common names, a prominent characteristic of the genus is a large blue tongue that can be bared as a bluff-warning to potential enemies. Blue-tongued skinks are also bred in captivity and sold as house pets. They are relatively shy in comparison with other lizards, and also significantly slower due to their short legs.