Helodermatidae

The Helodermatidae family consists of a small group of lizards, most notably the Gila monster (Heloderma suspectum) and the Mexican beaded lizard (Heloderma horridum). These lizards are found in the southwestern United States and northern Mexico.1

Key characteristics of Helodermatidae include:
* Appearance: They have stout bodies with beadlike scales, and the Gila monster is known for its distinctive black and pink blotches or bands.1
* Diet: They are slow-moving predators that primarily feed on small mammals, birds, and eggs during warmer months. They store fat in their tails and abdomens for use during winter.1
* Venom: Both species possess venom delivered through grooved teeth from glands in their lower jaw. This venom acts as a nerve poison, and while their bite is strong, fatalities in humans are rare.1