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
Aran rock lizard Aran rock lizard The Aran rock lizard ("Iberolacerta aranica") is a species of lizard in the family Lacertidae. "I. aranica" is found in a small area of the central Pyrenees on the Spanish-French border. It lives only in Mauberme massif, including its foothills between the Val d'Aran in Spain and the Ariège in France. The natural habitats of "I. aranica" are temperate grassland, rocky areas, and pastureland. "I. aranica" is threatened by habitat loss. The Aran rock lizard is a medium-sized lizard. Males can reach a total length (including tail) of up to , females up to . The back