New World Porcupines (Family Erethizontidae) - Scientific name of the common porcupine, reproductive information, and general remarks about this pokey mammal. www.ukans.edu/~mammals/erethizon.html
Porcupine - Describes what a porcupine looks like, its enemies, and habits. www.alienexplorer.com/ecology/m44.html
Porcupine - Description, distribution, and biological information on porcupines. www.fishbc.com/adventure/wilderness/animals/porcup.htm
Porcupine and Its Quills - Information of porcupine quills, their function, and how quills protect porcupines. www.alienexplorer.com/ecology/m46.html
