The lizard is the largest groups of reptiles. More than 3,00 species live in our world. Lizards make up 57 percent of all reptiles. Lizards have claws, lungs, and a tough outer skin of scales.
Most lizards have four legs, eyelids, and ear openings.
They are cold blooded. T hey adjust their body temperature depending on the sun. If they are in the sun their body temperature will rise, but if they are in the cold it will drop. Lizards turn bright colors when they are courting. The smallest lizards belongs to the skink and gecko families.