This lizard is found in dry, open regions of Mexico and in the southern and southwestern United States. It ranges from the Ozark Mountains to Missouri, through northern Texas, Oklahoma, Kansas, New Mexico, Arizona and southern Colorado and Utah. It is also found in Northern Mexico. It can reach 20–36 cm (8–14 inches) in length. Collared lizards in the wild have been the subject of a number of studies of sexual selection. In captivity if two males are placed in the same cage they will fight to the death. Males have a blue-green body with a light brown head. Females have a light brown head and body. Some collared lizards eat small amounts of fruits or vegetables, but most are entirely insectivorous. They are well known for the ability to run on their hind legs, looking like small theropod dinosaurs. Rendered in Poser 11 Pro without postwork. Models include: ShaaraMuse3D's 3S_Mosswoods and PP_MossyRocks and my Nature Wonder's Lizards and Lizards of the World Volume 3