Erethizon dorsata

Erethizon dorsatum

Summary 2

The North American porcupine (Erethizon dorsatum), also known as the Canadian porcupine or common porcupine, is a large rodent in the New World porcupine family. The beaver is the only larger rodent 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 migrated to North America during the Great American Interchange after the Isthmus of Panama rose 3 million years...

Sources and Credits

  1. (c) Danny Barron, some rights reserved (CC BY-NC-ND), http://www.flickr.com/photos/56398280@N00/2753273158
  2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Erethizon_dorsatum

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