Porcupine

A porcupine is a rodent that has needle-like quills that it uses as a defense mechanism when threatened. The name porcupine comes from the Latin, meaning "quill pig".National Geographic: Porcupine

Old World Porcupines

Old World porcupines are found in Africa and Asia. They live mainly on the ground, while New World porcupines may nest in trees. One difference between Old World and New World porcupines is the length of their quills. New World porcupines have four inch long quills, while Old World porcupines have quills up to twenty inches long.San Diego Zoo's Animal Bytes: Porcupine The Old World species, such as the brush-tailed, crested and long-tailed porcupines, are in the Hystricidae family.Animal Diversity Web: Hystricidae: Classification

New World Porcupines

The Erethizontidae family of rodents are known as the New World porcupines. There are twelve species found in North America, Mexico and parts of South America, including the bristle-spined rat, prehensile-tailed, North American, stump-tailed and hairy porcupines. New World porcupines are nocturnal and den in tree nests, logs and brush. Animal Diversity Web: New World Porcupines Animal Diversity Web: Erethizontidae: Classification

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