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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]
Like other rattlesnakes, they have eyes with vertical pupils, and their tail has a rattle on it. The rattle is composed of keratin. Each time the snake sheds its skin, a new segment is added to the rattle, but the rattle is fragile and may break off, and the frequency of shedding can vary, so the snake's age cannot be determined by its length ...
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.
Rapid habitat destruction by humans, mass killings during events such as rattlesnake round-ups, and deliberate extermination campaigns all pose threats to rattlesnake populations in many areas. Several species, such as the timber rattlesnake, massasauga , and canebrake rattlesnake, are listed as threatened or endangered in many U.S. states.
Those being studied now are prairie rattlesnakes, which can be found in much of the central and western U.S. and into Canada and Mexico. Like other pit viper species but unlike most snakes ...
Timber rattlesnake, Crotalus horridus This is a list of all sure genera, species and subspecies of the subfamily Crotalinae, [1] otherwise referred to as crotalines, pit vipers, or pitvipers, and including rattlesnakes Crotalus and Sistrurus.
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Western rattlesnake may refer to: Crotalus oreganus, a venomous pitviper species found in North America in the western United States, parts of British Columbia and northwestern Mexico; Crotalus viridis, a.k.a. the prairie rattlesnake, a venomous pitviper species native to the western United States, southern Alberta, Canada, and northern Mexico