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
Abbott's crested lizard Abbott's crested lizard Abbott's crested lizard ("Gonocephalus abbotti") is a species of lizard in the Agamidae family. It is endemic to Thailand. Both the specific name, "abbotti", and the common name are in honor of American naturalist William Louis Abbott. It is also known as Abbot's anglehead lizard. Abbott's crested lizard is about in total length (including tail). The most distinctive anatomical features are the triangular bony crest on the face and the upturned nose. The colors of the dragon range from tan to green with light and dark dots on the body. The most common color is an olive