Rattlesnake
A venomous snake in the pit viper family, native to the Americas, whose segmented tail produces a warning rattle when shaken.
Rattle (snake): A segmented structure at a rattlesnake’s tail tip that produces sound when shaken. Interlocking keratin segments create the characteristic warning sound without touching the ground.
Viperidae: A family of venomous snakes with hinged fangs, including vipers, adders, and pit vipers. Rattlesnakes belong to this family through their placement among pit vipers.
Western diamondback rattlesnake: A large rattlesnake native to the southwestern United States and northern Mexico. Its broad range and frequent human encounters make it a well-known species.
Antivenom: A medicine made from antibodies that neutralizes toxins in venom. Antivenom is used to treat serious rattlesnake envenomation.
Rattlesnake roundup: An event in which rattlesnakes are captured, displayed, or killed, often as public entertainment. Roundups expose tensions between local traditions, animal welfare, and conservation.
Pit organ: A heat-sensitive facial organ in pit vipers that detects infrared radiation from nearby animals. Paired pits help rattlesnakes locate warm-bodied prey, even in darkness.
Crotalinae: The pit viper subfamily, distinguished by heat-sensing pits between the eyes and nostrils. Rattlesnakes are members of this subfamily, alongside copperheads and cottonmouths.
Eastern diamondback rattlesnake: A large rattlesnake of the southeastern United States and the largest rattlesnake species. It illustrates the group’s size and the conservation pressures affecting some species.
Snakebite envenoming: A harmful medical condition caused by venom injected during a snakebite. Rattlesnake bites are one source of this global health problem.
Rattlesnake conservation: Efforts to protect rattlesnake populations, habitats, and ecological roles. Habitat loss, persecution, and collection threaten some rattlesnake populations.