A striking sight with her beaded skin of pink and black, Gila Monster blends well into her desert home in Arizona. This sluggish-seeming lizard intently flicks her tongue to detect a tasty mouse. At other times, She adroitly climbs the cactus with her sharp claws to hunt for perching birds. Tasting the air with her forked tongue, Gila Monster finds Desert Rat, and quickly chomps down with her vice-like jaws. Then She swallows her paralyzed victim whole and head first.
Gila Monster with her Brother – Mexican Beaded Lizard – are the only venomous lizards (Helodermatidae) in the world. Because of their venom and forked tongues, Gila Monster (Heloderma suspectum) and her Brother (Heloderma horridum ) are distant relatives of snakes. These two lizards are also close relatives to monitor lizards (Varanidae), who possess poisonous saliva, and could be ancestors of snakes. These two beaded lizards have an ancient ancestry, extending back to the mid-Cretaceous.
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