Lizards can be found on all continents, except Antarctica, and on most tropical and subtropical oceanic islands. This widespread distribution suggests broad ecological, physiological, and behavioural adaptations to extreme climates, habitats and regions. Their highest species diversity appears to be in semiarid habitats. | Lizards can be found on all continents, except Antarctica, and on most tropical and subtropical oceanic islands. This widespread distribution suggests broad ecological, physiological, and behavioural adaptations to extreme climates, habitats and regions. Their highest species diversity appears to be in semiarid habitats. |