A lizard moves on four limbs.
It hears air-borne sounds through external ear openings.
It sees with an eye, which may be covered by two movable eyelids.
It moves with the help of its body. It has broad ventral scales which catch against the ground and keep it from slithering backwards.
It can only hear through its skull bones, which transmit vibrations from the ground.
Eye is covered by a transparent scale.