Las Vegas means more than casinos and bright lights—the surrounding Mojave Desert harbors some of North America’s most dangerous venomous creatures. Clark County emergency rooms treat hundreds of venomous bites and stings annually, from hikers exploring Red Rock Canyon to residents working in their own backyards.
Whether you’re visiting for the weekend or call the valley home, understanding these desert animals and their behaviors could save your life during outdoor activities, yard work, or routine neighborhood walks.
Western Diamondback Rattlesnake
The Western diamondback rattlesnake (Crotalus atrox) represents the most commonly encountered venomous snake around Las Vegas, accounting for approximately 60% of all rattlesnake bites in Nevada. What makes this species particularly concerning is their aggressive defensive behavior and willingness to stand their ground rather than retreat when threatened.
You can identify Western diamondbacks by their prominent diamond-shaped patterns running along their backs, distinctive black and white banded tail rings resembling a raccoon’s tail, and broad triangular heads. Adults typically reach impressive lengths of 3-5 feet, though exceptional specimens can exceed 6 feet. Their coloration ranges from dusty gray to pinkish-brown, providing excellent camouflage against desert rocks and sand…