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
Leaf-nosed lizard Leaf-nosed lizard Ceratophora tennentii, commonly known as the horned lizard, horn-nosed lizard, leaf-nosed lizard, and Tennent's leaf-nosed lizard, is a species of lizard in the family Agamidae. The species is endemic to Sri Lanka. The generic name, "Ceratophora", means horn bearer. The specific name, "tennentii", is in honour of Irish politician James Emerson Tennent, who was Colonial Secretary of Ceylon (1845–1850). "C. tennentii" has a leaf-like appendage on the end of its nose. The species can reach lengths of over including the tail. Males usually have more green in their coloration than females have, although they can change color to