Porcupine

New World porcupine	Porcupines are large rodents with coats of sharp spines, or quills, that protect them against predators. The term covers two families of animals: the Old World porcupines of family Hystricidae, and the New World porcupines of family Erethizontidae. Both families belong to the infraorder Hystricognathi within the profoundly diverse order Rodentia and display superficially similar coats of quills: despite this, the two groups are distinct from each other and are not closely related. For more information, visit the Wikipedia entry.
Old World porcupine

Old World porcupine

The Old World porcupines, or Hystricidae, are large terrestrial rodents, distinguished by the spiny covering from which they take their name. They range over the south of Europe, most of Africa, India, and the Maritime Southeast Asia as far east as Borneo. Although both the Old World and New World porcupine families belong to the Hystricognathi branch of the vast order Rodentia, they are quite different and are not closely related. For more information, visit the Wikipedia entry. Get back to Rodentia
Cape porcupine	Crested porcupine	Indian crested porcupine	Malayan porcupine

phylum	Chordata	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 North America, and into northern South America. Although both the New World and Old World porcupine families belong to the Hystricognathi branch of the vast order Rodentia, they are quite different and are not closely related. For more information, visit the Wikipedia entry. Get back to Rodentia
class	Mammalia
infraclass	Eutheria
order	Rodentia
family	Erethizontidae