
Crotalus oreganus
Crotalus oreganus, commonly known as the Western rattlesnake, is a venomous snake found in western North America. Recognizable by its distinctive rattle at the tail's end, it uses this sound as a warning to predators. Typically, it has a thick body with patterns of dark bands or blotches on a lighter background, aiding in camouflage. It is generally shy and will avoid humans, but can bite if threatened or provoked. Its venom contains proteins that can disrupt blood clotting and destroy tissue, but bites are rarely lethal when treated promptly. The snake plays a vital role in controlling rodent populations.