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Rattlesnakes of the Southwest

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Rattlesnakes of the Southwest

Rattlesnakes are very common in North America; they mainly range from Arkansas to Southern California. Rattlesnakes as most people known use a rattle, located at the ends of their tail, to warn people of their location. Rattlesnakes are from the Pit Viper family of snakes. They use pits located in their head to sense heat from prey or predators. Some rattlesnakes can sense heat from a mouse from as far as twelve feet away. Some common rattlers of the southwest are the Western Diamondback, Mohave, Sidewinder, and Prairie Rattlesnakes. All snakes listed are of the Genus Crotalus; which is the most common among rattlesnakes.

Western Diamondbacks are the most common and most likely to come in contact with people. It has the widest geographic range, ranging from Arkansas to Southern California and into Northern Mexico. It is the largest rattlesnake in the southwest, attaining lengths of up to six feet. It also packs the most venom; normal yield is normally around 200-300 mg. A dose of 100 mg is usually lethal to humans, although most bites are defensive and venom is not injected. These snakes are very difficult to see because they blend in so well with their surroundings. They commonly have about ten rattles at 5 to 6 years of age.

Mohave, sometimes referred to as Three-Stepper, are the second most common rattlers in the southwest. The main factor of the Mohave Rattlesnake is that it is the most venomous snake in this family. It’s normal yiel...
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