Gila monster

Gila monster

One of the only two species (both in the family Helodermatidae) of venomous lizards, named for the Gila River basin and found in the southwestern U.S. and northern Mexico. The Gila monster (Heloderma suspectum) grows to about 20 in. (50 cm) long, is stout-bodied with black and pink blotches or bands, and has beadlike scales. During warm weather, it feeds at night on small mammals, birds, and eggs and stores fat in the tail and abdomen for the winter. It is sluggish but has a strong bite. The venom (a neurotoxin) is conducted along grooves in the teeth from glands in the lower jaw. Bites are rarely fatal to humans. The other venomous species is the Mexican beaded lizard (H. horridum).

This entry comes from Encyclopædia Britannica Concise.
For the full entry on Gila monster, visit

Seen & Heard

What made you look up Gila monster? Please tell us what you were reading, watching or discussing that led you here.

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More