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
Western green lizard Western green lizard The western green lizard (Lacerta bilineata) is a wall lizard of the Lacertidae family. The genus name "Lacerta" and the species name "bilineata" are Latin words respectively meaning “lizard” and “with two lines”, with reference to the pale lines present on the flanks of the young individuals. It is found in Andorra, Croatia, France, Germany, Italy, Monaco, Serbia, Slovenia, Spain, Switzerland, on Jersey in the British Isles, and the United States. There are also colonies on the south coast of the U.K, notably around Poole Bay in Dorset. "Lacerta bilineata" reaches an average length (excluding tail) of