Crotalus (rattlesnakes)

Crotalus, commonly known as rattlesnakes, are venomous snakes recognizable by the distinctive rattles on their tails, used to warn predators. They are primarily found in North and South America and prefer dry, rocky habitats. Rattlesnakes are ambush predators; they strike quickly when threatened, delivering venom that immobilizes or kills prey like rodents. Their venom contains enzymes and toxins that affect the nervous system and blood, but bites to humans are rarely fatal if treated promptly. Rattlesnakes are an important part of their ecosystem, controlling rodent populations and contributing to biodiversity.