Sidewinder

The Sidewinder rattlesnake (Crotalus cerastes), also known as the "Horned Rattlesnake", is a species of venomous pit viper. There are three subspecies. It is called a sidewinder because it uses sidewinding to move across sand.

 Description
The Sidewinder rattlesnake is a small species of snake, with adults measuring to about  long. The females are larger than the males, which is unusual for most snakes. The color of this snake is usually cream or yellowish-brown, and the belly is white colored.

 Where it lives
In the southwestern United States of America it can be found in desert regions of eastern California, southern Nevada, southwestern Utah and western Arizona. In northwestern Mexico, it can be found in western Sonora and eastern Baja California.

 Behavior
The Sidewinder is nocturnal in hot months and diurnal in cooler months. The Sidewinder uses its tail to attract lizards which it eats, but when it becomes an adult it stops eating lizards and starts eating desert rodents. They also feed on small mammals and birds. They are venomous, but not generally fatal to humans. The venom causes localized pain and swelling.

 Reproduction
A female Sidewinder Rattlesnake gives birth to around 5 to 18 young at a time. For 7–10 days the young stay with their mother in a burrow, they then shed for the first time and then leave the burrow. Sidewinders mature at the age of 2 or 3, then mate in April and May and sometimes in the fall. The female then has its 5-18 babies in the late summer. These babies are born 6-8 inches long. Males live a little bit longer than females, males live to about 13 years old and females about 11 years old. 

 Subspecies
There are three subspecies:
 Mojave Desert Sidewinder, C. c. cerastes
 Sonoran Desert Sidewinder, C. c. cercobombus
 Colorado Desert Sidewinder, C. c. laterorepens

 References 

Category:Vipers
Category:Snakes of North America