• Kingdom: Animalia
  • Phylum: Chordata
  • Class: Mammalia
  • Order: Rodentia
  • Family: Erethizontidae
  • Genus: Erethizon
  • Species: E. dorsatum
  • North American Porcupines are the second largest rodents in the United States, tipping the scales at 20 pounds.
  • Porcupines are covered in about 30,000 quills. They cannot throw or shoot their quills. Because quills are so lightly attached, they come off easily when a predator encounters them.
  • Despite spending most of their time on the ground, North American Porcupines are excellent climbers and surprisingly good swimmers.
  • Baby porcupines are born with soft quills that harden within 48 hours of birth.