Rattlesnakes are in the genus Crotalus , and are closely related to pygmy rattlesnakes, which are in the genus Sistrurus. Sometimes called a canebrake rattlesnake, these snakes found in the Eastern United States. According to the New Hampshire Fish and Wildlife Department , they are large, regularly growing up to 5 feet 1. However, it is hard to see the brown pattern on some snakes, and they look uniformly black.
On others, the background is tan and their bands are clearly brown. According to the Florida Museum of Natural History , timber rattlesnakes in the Sunshine State and other parts of the South are lighter colored with a reddish brown stripe running down the center of their backs.
According to National Geographic , these are the largest venomous snakes in North America, reaching up to 8 feet 2. They are found from North Carolina to Louisiana. They have a visually striking yellow-bordered black diamond pattern. At up to 7 feet long 2 m , this is the largest of the Southwestern rattlers and considered the most dangerous. Its back is covered with dark diamond-shaped patches lined with lighter scales, and according to the Arizona-Sonora Desert Museum , its rattle has a unique black-and-white, raccoon-like color scheme.
Unlike many other rattlers who flee, the Western diamondback will stand its ground, coil, and hiss when threatened. A small rattlesnake reaching less than three feet 1 m , this Southwestern rattlesnake has extensive cross-banding and the smallest head of any rattler, according to the ADW.
Its bands may be brownish or gray in color on a brown or orange-ish background. Its head is small in proportion to its body, so it holds less venom — though it is no less potent. However, the group's Red List of Threatened Species lists three species of concern:. The Santa Catalina Island rattlesnake Crotalus catalinensis is "critically endangered" because of its limited range it is found only on Santa Catalina Island off the coast of California , over-collection and killing by humans and feral cats.
The long-tailed rattlesnake Crotalus stejnegeri is listed as "vulnerable. It is a rare species, according to the IUCN, and is known only from a few specimens. The population is likely decreasing due to loss of habitat caused by logging and agriculture. The Tancitaran dusky rattlesnake Crotalus pusillus is listed as "endangered" because it is found only in a small area of Mexico; however, no population information is available. If startled, the snake may go straight to the attack, but they can only strike from a coiled position.
Rattlesnakes do not seek people out—generally people who are bitten have had the misfortune of stumbling across a rattlesnake or have attempted to handle one. Most species are stable, but one species and one subspecies are federally listed as threatened. Rattlesnakes are vulnerable to being killed by those who view them as dangerous pests rather than important predators.
Snakes that imitate the rattlesnakes, like gopher snakes, are mistakenly killed when they are incorrectly identified as rattlesnakes. Although rattlesnakes may seem scary to people, they play a very important role in their ecosystems by controlling small mammal populations.
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Uniting all Americans to ensure wildlife thrive in a rapidly changing world. Inspire a lifelong connection with wildlife and wild places through our children's publications, products, and activities. In 4 seconds , you will be redirected to nwfactionfund. The National Wildlife Federation. Classification: Reptile. Description Rattlesnakes are highly specialized, venomous reptiles with large bodies and triangle-shaped heads.
Diet Rattlesnakes eat mostly rodents, but may also eat insects and other reptiles. The climate is hot and muggy with the world's oceans as hot as a sauna. Also, it just started raining and it will not st Written By: Timothy James. OCT 28, Cannabis Sciences. Written By: Nadine Husami. NOV 09, Some people change careers, and it seems that the Harpegnathos saltator ant can do the same; worker ants can switch to q Written By: Carmen Leitch. Tagging is how all of our articles, products and events are related to each other.
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