The family of rodents that includes all porcupines found in the New World (Americas).
From the genus name 'Erethizon' plus the taxonomic suffix '-idae' used to denote animal families. This follows Carl Linnaeus's system of biological classification established in the 18th century.
The Erethizontidae family includes the tree porcupine, which can climb and has a prehensile tail—a surprising adaptation that allows some porcupines to be surprisingly acrobatic despite their prickly appearance.
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