Snakes and Lizards are quite different, even though they belong to the same order of reptiles. Lizards walk on their legs, while snakes wriggle on their bellies. They hear differently. Lizards hear sounds in the air through two external ear openings, while snakes hear vibrations in the ground through their skull bones. Lizards have eyelids while snakes have none, which is a reason why most people are frightened of snakes.
