Gila monster Gila monster The Gila monster ("Heloderma suspectum", ) is a species of venomous lizard native to the southwestern United States and northwestern Mexican state of Sonora. A heavy, typically slow-moving lizard, up to long, the Gila monster is the only venomous lizard native to the United States and one of only two known species of venomous lizards in North America, the other being its close relative, the Mexican beaded lizard ("H. horridum"). Although the Gila monster is venomous, its sluggish nature means it represents little threat to humans. However, it has acquired a fearsome reputation, and is sometimes killed despite
Sagebrush lizard cats also prey on them. There are three valid subspecies of the sagebrush lizard, which differ in their geographic distributions, markings, and number of scales. The subspecific name, "vandenburgianus", is in honor of American herpetologist John Van Denburgh. Sagebrush lizard The sagebrush lizard ("Sceloporus graciosus") is a common species of phrynosomatid lizard found at mid to high altitudes in the western United States of America. It belongs to the genus "Sceloporus" (spiny lizards) in the Phrynosomatidae family of reptiles. Named after the sagebrush plants near which it is commonly found, the sagebrush lizard has keeled and spiny scales running along