Obviously a juvenile.
Short-horned Lizard (Phrynosoma Douglassi), Massai Point Chiricahua National Monument AZ
The Short-horned Lizard is a small lizard that occurs in North America. Like other horned lizards, it is often wrongly called the "Horned Toad", but it is not a toad at all. It is a reptile, not an amphibian. It is one of five species of lizards in Canada.