Erethizon is a genus of New World porcupine and the only one of its family to be found north of southern Mexico. The North American porcupine is the only extant species, but at least four extinct rela

The New World porcupines, family Erethizontidae, are large, arboreal rodents, distinguished by their spiny coverings from which they take their name. They inhabit forests and wooded regions across Nor