There are almost 3,800 species of lizard in the world. They are reptiles with overlapping scales, typically with limbs and external ears. Some lizards can shed their tails in order to escape from predators.
Lizards can communicate using body language or by employing bright colouration on their bodies. They generally have good colour vision.
Some species of lizard are called chameleons which can adapt their skin colour to their surroundings for safety.
The largest living lizard is the Komodo Dragon which can grow up to three metres in length