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Like all pit vipers, rattlesnakes have two organs that can sense radiation; their eyes and a set of heat-sensing "pits" on their faces that enable them to locate prey and move towards it, based on the prey's thermal radiation signature. These pits have a relatively short effective range of about 1 ft (0.30 m) but give the rattlesnake a distinct ...
Crotalus enyo, commonly known as the Baja California rattlesnake [3] or Lower California rattlesnake, [4] is a pit viper species native to the coast and islands of northwestern Mexico. Like all other pit vipers, it is venomous. Three subspecies are currently recognized, including the nominate subspecies described here. [5]
Crotalus cerastes, known as the sidewinder, horned rattlesnake or sidewinder rattlesnake, [3] is a pit viper species belonging to the genus Crotalus (the rattlesnakes), and is found in the desert regions of the Southwestern United States and northwestern Mexico. Like all other pit vipers, it is venomous.
A Guide to the Rattlesnakes and Other Venomous Serpents of the United States. Tempe, Arizona: Tricolor Books. 129 pp. ISBN 978-0-9754641-3-7. (Sistrurus miliarius barbouri, pp. 83–85). Schmidt KP, Davis DD (1941). Field Book of Snakes of the United States and Canada. New York: G.P. Putnam's Sons. 365 pp. (Sistrurus miliarius barbouri, p. 289).
A color band may be seen at the back of the eye. The prairie rattlesnake group carries the distinctive triangle-shaped head and pit sensory organs on either side of the head. A key characteristic that can help differentiate a prairie rattlesnake from other rattlesnakes is the presence of two internasals contacting the rostral. [9]
The Guiana rattlesnake, previously recognized as C. d. dryinus, [3] is now considered a synonym for C. d. durissus.In fact, after the previous nominate subspecies for the C. d. durissus complex became the current nominate for Crotalus simus, which now represents its Mexican and Central American members, C. d. dryinus became the new nominate for the South American rattlesnakes as represented by ...
Crotalus oreganus, commonly known as the Western rattlesnake or northern Pacific rattlesnake, [4] [5] is a venomous pit viper species found in western North America from the Baja California Peninsula to the southern interior of British Columbia.
The tiger rattlesnake ambushes much of its prey, but also actively hunts for small rodents and lizards, with juveniles relying heavily on lizards and adults depending more on rodents. In addition, these small rattlesnakes have been known to eat fairly large prey, including pocket mice, kangaroo rats, deer mice, packrats, and even spiny lizards.