Mammals of Jasper National Park

The North American Porcupine (Erethizon dorsatum), also known as Canadian Porcupine or Common Porcupine, is a large rodent in the New World porcupine family. The Beaver is the only other rodent larger than the North American Porcupine found in North America. The porcupine is a caviomorph rodent whose ancestors rafted across the Atlantic from Africa to Brazil over 30 million years ago, and then invaded North America during the Great American Interchange after the Isthmus of... less ↑