The Western diamondback is a species of rattlesnake found primarily in the southwestern United States and northern Mexico. It is easily recognized by its distinctive diamond-shaped patterns along its back, which can vary in color from gray to brown. This snake can grow to lengths of 3 to 7 feet and is known for its rattle, a warning mechanism made of keratin segments. These snakes inhabit a variety of environments, including deserts, grasslands, and rocky areas. They are primarily nocturnal and feed on small mammals, birds, and reptiles. The Western diamondback plays a crucial role in its ecosystem by controlling rodent populations and serving as prey for larger predators like hawks and coyotes.