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The 36 known species of rattlesnakes have between 65 and 70 subspecies, [3] all native to the Americas, ranging from central Argentina to southern Canada. The largest rattlesnake, the eastern diamondback, can measure up to 2.4 m (7.9 ft) in length. [4] Rattlesnakes are preyed upon by hawks, weasels, kingsnakes, and a
Often, this rattlesnake has a black band across its eyes extending diagonally down to the corners of its mouth, forming a sort of facial 'mask'. Like other rattlesnakes, C. molossus has a rattle composed of keratin on the end of its tail. Each time the snake sheds its skin, a new segment is added to the rattle.
Venomoid surgery is a surgical procedure performed on venomous snakes to prevent them from producing venom. The procedure has been used for snakes kept as pets or used in public demonstrations in order to remove the risk of injury or death when handled, but is considered illegal and unethical. [1]
The prey of the timber rattlesnake are mainly small mammals, but may include small birds, frogs, and other small animals. [30] Like most rattlesnakes, timber rattlesnakes are known to use chemical cues to find sites to ambush their prey and often strike their prey and track them until they can be consumed.
The hemipenis is the intromittent organ of Squamata, [4] which is the second largest order of vertebrates with over 9,000 species distributed around the world. They differ from the intromittent organs of most other amniotes such as mammals, archosaurs and turtles that have a single genital tubercle, as squamates have the paired genitalia remaining separate. [5]
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.
In most other snakes, the tail tip, or terminal spine, is cone-shaped, hardly any thicker than the rest of the skin, and is shed along with it at each successive molt. In this case, the end scale, or "button", is much thicker and shaped like a bulb, with one or two annular constrictions to prevent it from falling off.
Parthenogenesis is a mode of asexual reproduction in which offspring are produced by females without the genetic contribution of a male. Among all the sexual vertebrates, the only examples of true parthenogenesis, in which all-female populations reproduce without the involvement of males, are found in squamate reptiles (snakes and lizards). [1]