Monitor lizard

Monitor lizards are the family Varanidae, a group of lizards which includes the largest living lizard, the Komodo Dragon. Varanidae contains only a single genus: Varanus.

In Australia monitor lizards are known as goannas.

Origin of Name

It has been said that the name of monitor lizards is derived from a superstition that the creatures would give a warning about the presence of crocodiles. However, this explanation may be apocryphal. According to Wildwatch, the name actually resulted from a mishearing of the Arabic word oaran (lizard) as the German warnen (to warn), which was subsequently Latinized into monitor.