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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 ...
The main prey of C. catalinensis is Slevin's mouse (Peromyscus slevini). The diet of this rattlesnake is a fraction of the diet of its closest relative, the Red diamond rattlesnake, Crotalus ruber. C. ruber, like most rattlesnakes, frequently prey on lizards and small mammals such as mice, rats, and squirrels.
Crotalus is a genus of pit vipers, commonly known as rattlesnakes or rattlers, [2] in the family Viperidae.The genus is found only in the Americas from southern Canada to northern Argentina. [1]
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 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 concolor, commonly known as the midget faded rattlesnake, [4] faded rattlesnake, [5] and yellow rattlesnake, [6] is a pit viper species found in the western United States. [ 4 ] [ 7 ] It is a small rattlesnake known for its faded color pattern.
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 eastern massasauga (Sistrurus catenatus) is a rattlesnake species found in central and eastern North America from southern Ontario in Canada and throughout the Midwestern and Eastern United States. Like all rattlesnakes, it is a pit viper and is venomous; it is the only species of venomous snake in Ontario. [4]