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Scientific name: Families: erethizontidae and hystricidae
Porcupines are a large rodent related to the beaver. They are spiny like hedgehogs and echidnas but are not related to either of them.Porcupines come in many shapes and sizes, but all have sharp quills. Porcupines can lose their quills, so if something bites a porcupine they get a mouthful of spikes.