Porcupine Quills


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Porcupines are rodents with a coat of sharp spines, or quills, that protect against predators. The term covers two families of animals, the Old World porcupines and New World porcupines. Both families belong to the Hystricognathi branch of the vast order Rodentia and display similar coats of quills, but they still are quite different and are not closely related.


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