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
Spineless forest lizard Spineless forest lizard The spineless forest lizard, crestless lizard or lionhead agama (Calotes liocephalus) is a species of lizard in the family Agamidae. It is endemic to Sri Lanka. "Calotes liocephalus" grows to in snout–vent length and in total length. Spineless forest lizard is one of four "Calotes" species endemic to Sri Lanka, which all share a common set of characteristics. These include a relatively short head, with swollen cheeks, backwards, or backwards and downwards pointing scales on the side of the body, a tail that is strongly swollen at the base in fully grown adult males. This lizard is