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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.
One of the most characteristic features is the presence of three or more, usually four, internasal scales. [6] Identification characteristics will vary depending on which subspecies is encountered. Generally, prairie rattlesnakes are usually lightly colored in hues of brown. Patches of dark brown are often distributed in a dorsal pattern.
Like other rattlesnakes, its tail has a rattle, which is composed of keratin. Each time the snake sheds its skin, a new segment is added to the rattle. However, the rattle is fragile and may break off, and the frequency of shedding can vary. So, the snake's age cannot be determined by the number of segments or length of the rattle.
Of the 6 venomous snake species native to N.C., 3 are rattlesnakes – pigmy, timber & Eastern diamondback. Each one is protected by the North Carolina Endangered Species Act.
C. scutulatus is also widely regarded as producing one of the most toxic snake venoms in the Americas, based on LD 50 studies in laboratory mice. [ 46 ] Rattlesnake venom is a mixture of five to fifteen enzymes , various metal ions , biogenic amines , lipids , free amino acids , proteins , and polypeptides .
Common names: southwestern speckled rattlesnake, [2] Mitchell's rattlesnake, [3] more. Crotalus pyrrhus is a venomous pitviper species [2] found in the southwestern United States and northwestern Mexico. A medium-sized snake, it is found mostly in rocky country, active at night and feeding on small mammals. The coloration is variable and ...
Like other pit viper species but unlike most snakes, rattlesnakes don't lay eggs. Instead, they give birth to live young. Eight is an average-size brood, with the number depending on the snake's ...
The Arizona black rattlesnake is the first species of snake observed to exhibit complex social behavior, [11] and like all temperate pit vipers, care for their babies. Females remain with their young in nests for 7 to 14 days, and mothers have been observed cooperatively parenting their broods.