Spend quill-ity time with Icana and spike your serotonin levels. Porcupines don't actually shoot their quills. Quills are a modified hair follicle, so it'd be like propelling your own hair at your enemy. Gross. See Icana the prehensile-tailed porcupine at Wildlife Explorers Basecamp opening March 11! #SanDiegoZoo #SDZBasecamp #Porcupine