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In Canada, it is found in southern interior of British Columbia and is one of only three remaining rattlesnake species in the country. [11] In the United States, it occurs in Washington, Oregon, California, western and southern Idaho, Nevada, Utah, Arizona, western Colorado, and small parts of New Mexico and Wyoming. [12]
Roughly 7,000–8,000 people are bitten by venomous snakes each year in the United States, and about five of those people die. [4] Though most fatal bites are attributed to rattlesnakes, the copperhead accounts for more snakebites than any other venomous North American species. Rattlesnake bites are roughly four times as likely to result in ...
Crotalus helleri or Crotalus oreganus helleri, also known commonly as the Southern Pacific rattlesnake, [3] the black diamond rattlesnake, [4] and by several other common names, is a pit viper species [5] or subspecies [3] found in southwestern California and south into Baja California, Mexico, that is known for its regional variety of dangerous venom types.
While there are seven species of rattlesnakes in California, only one — the Northern Pacific Rattlesnake — can be found in the central San Joaquin Valley. The snakes aren’t typically found ...
The most common is the western rattlesnake, which can be found from sea level to elevations of 7,000 feet, according to the California Department of Fish and Wildlife. Rattlesnakes can be ...
The most common is the western rattlesnake, which can be found from sea level to elevations of 7,000 feet, according to the California Department of Fish and Wildlife. Rattlesnakes can be ...
The United States in the Great Basin region. Its range includes Idaho south of lat. 44° North, Utah west of long. 111° West, Arizona west and north of the Colorado River as well as the north rim of the Grand Canyon, the entire state of Nevada (excluding Esmeralda, Nye and Clark counties), California east of the Sierra Nevada from Lower Klamath Lake south to below Lake Mono, Oregon south and ...
The amphibians of western North America: an account of the species known to inhabit California, Alaska, British Columbia, Washington, Oregon, Idaho, Utah, Nevada, Arizona, Sonora, and Lower California. California Academy of Sciences. Stebbins, Robert C. (1954). Amphibians and Reptiles of Western North America. New York: McGraw-Hill Book Company.