also Pangolins, another mammal group with protective keratin body coverings Armadillos, another mammal group with protective keratin body coverings References External links Wildlife Conservation: Porcupine African Wildlife Foundation "Resource Cards: What About Porcupines?" Pacific Northwest National Laboratory Porcupine control in the western states University of North Texas Digital Library The Complete Resource To Keeping Porcupines As Pets Body plans Hystricognath rodents Rodents by common name