Real North American Porcupine skulls and African Porcupine Skulls for sale, hand picked and photographed allowing you to see what you are buying.  The North American Porcupine Skulls with measure between  3-1/2 and 4-1/2 inches and the much larger African Porcupine Skull measures between 5 and 6 inches. Their upper parts are covered with sharp quills used for defense.  Porcupines are primarily terrestrial but freely climb trees to obtain food or to escape danger.  These porcupine skulls have been cleaned and cleared for legal entry into the United States by the U.S Fish and Wildlife Service and U.S Customs.