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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]
Common names: Hopi rattlesnake, [2] Arizona prairie rattlesnake, prairie rattlesnake. [3]Crotalus viridis nuntius is a venomous pit viper subspecies [4] native primarily to the desert plateau of the northeastern portion of the American state of Arizona, but also ranges into northwestern New Mexico.
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.
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.
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In 1987, the first study of mountain lion ecology was initiated in Yellowstone National Park. The research documented population dynamics of mountain lions in the northern Yellowstone ecosystem inside and outside the park boundary, determined home ranges and habitat requirements, and assessed the role of lions as a predator in the ecosystem.
Prairie rattlesnake may refer to: Crotalus viridis, a.k.a. the plains rattlesnake, a venomous pitviper species native to the western United States, southwestern Canada, and northern Mexico. Sistrurus catenatus, a.k.a. the massassauga, a venomous pitviper species found primarily in the United States.