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[27] [28] However, because of its large venom glands and specialized fangs, the western diamondback rattlesnake can deliver a large amount of venom in a single bite. The average venom yield per bite is usually between 250 and 350 mg, with a maximum of 700–800 mg. [5] [29] Severe envenomation is rare but possible, and can be lethal. Mortality ...
Rattlesnake venom is a mixture of five to fifteen enzymes, various metal ions, biogenic amines, lipids, free amino acids, proteins, and polypeptides. More specifically, there are three main families of toxins in rattlesnakes: phospholipases A2 (PLA2s), snake venom metalloproteinases (SVMPs), and snake venom serine proteinases (SVSPs). [49]
Sistrurus tergeminus, also known as the western massasauga, is a rattlesnake found in the southwestern plains of the United States and northern Mexico. Like all rattlesnakes, it is a pit viper and is venomous .
The tiger rattlesnake (Crotalus tigris) has a comparatively low venom yield [173] but is considered to have the most toxic of all rattlesnake venoms, and the highest venom toxicity of all snakes in the Western Hemisphere. Although reluctant to bite, tiger rattlesnakes are known to be cantankerous and aggressive.
The cause of death was determined to be "anaphylactic shock as a result of the snake bite." Westbrook had been bitten previously by a Copperhead, which may have made him hypersensitive to snake venom. [39] October 13, 2010 William Price, 67, male: Rattlesnake, probably a Southern Pacific rattlesnake
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 venom of the C. molossus is primarily hemotoxic, like that of most crotalids. However, it is only about two-thirds as toxic as western diamondback venom and is generally not fatal to humans. CroFab antivenom is often used to treat bites. Crotalus molossus has larger venom glands than most rattlesnakes in its region. Because its venom is ...
Western pygmy rattlesnake (Sistrurus miliarius streckeri), Wayne County, Missouri (13 April 2018)S. miliarius is a small species but bulky when it comes to width, [5] with adults usually growing to 40–60 cm (16–24 in) in total length (including tail).