These pits allow the snakes to detect infrared radiation, giving them a finely-tuned ability to hunt small prey.īelow the family Crotalinae, the rattlesnakes are all part of two genera: Crotalusand Sistrurus. The rattlesnakes are all part of the family Crotalinae, which also contains other snake types such as the lanceheads and Asian pit vipers.Īll of the species in this family share a common feature, which is a deep pit that’s located between the nostril and the eye on both sides of the head. These are the only venomous snakes found in the Americas. Crotalinae – Also known as the pit vipers, the family Crotalinae contains 22 genera and more than 150 species, all of which are found in Eurasia and the Americas.These snakes are primarily found in tropical and subtropical areas of Africa and Asia, but they also live in parts of Europe. Viperinae – Sometimes called the pitless vipers, the family Viperinae contains 13 genera and more than 4 dozen species.These snakes are found only in southeastern Asia, primarily in China and Vietnam. Azemiopinae – This subfamily contains just one genus, Azemiops, and two species: A.There are 3 subfamilies within the family Viperidae: As its name suggests, the family Viperidae contains all of the “vipers,” which are all of the world’s venomous snakes. The rattlesnakes belong to the family Viperidae. Within the infraorder Alethinophidia, all other snakes are divided up into a number of families. The infraorder Scolecophidia contains only a small collection of snake species that are called blind or thread snakes. Most living snakes are classified within the infraorder Alethinophidia. There are a number of extinct suborders and families within the clade Ophidia that contain species that are closely related to modern snakes.Īll living snakes belong to the suborder Serpentes, which is divided into two infraorders: Scolecophidia and Alethinophidia. This is the clade that includes all living snake species. Under the order Squamata, rattlesnakes are part of the clade Ophidia. Below that, they’re all part of the order Squamata, which includes all reptiles that have scales, such as lizards. Like all snakes, rattlesnakes are part of the kingdom Animalia, phylum Chordata, and the class Reptilia. But have you ever stopped to think about how rattlesnakes are classified? The term ‘rattlesnake’ refers to a specific type of snake that has a rattle on the end of its tail. Types of Rattlesnakes Infographic by Outforia What is the most aggressive rattlesnake?.How many different kinds of rattlesnakes are there?.5| Fatal Rattlesnake Bites Aren’t Common in North America.4| Rattlesnake Babies are Called Snakelets.3| Rattlesnakes Can Sense the Body Heat of Their Prey.2| A Rattlesnake’s Rattle Is a Hollow Structure Made from Keratin.1| Rattlesnakes Give Birth to Live Young.
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