Courtesy of Chris Reimann. http://www.gilaranch.com. All rights reserved.

The Mexican beaded lizard and the Gila monster are two types of poisonous (venomous) lizards found in North America. These large lizards have thick, fleshy tails and short, powerful limbs. The Mexican beaded lizard lives in desert regions in northern Mexico and along the coast into northern Guatemala. The Gila monster lives in desert regions of southwestern United States and northern Mexico.