The Sand Lizard is a unique reptile for several reasons. First, it is the only lizard that can change its color. Second, it is one of the few lizards that can climb trees. Third, it is one of the largest lizards in North America. fourth, The Sand Lizard is one of the fastest lizards and can run up to speeds of 18 mph. Finally, it has a very good sense of smell and can find food buried beneath the sand.