the porcupine erithizon dursatum is a large herbivore mammal noted for the barbed quills on its back used for defense and its ability to chew through tree bark in order to get its food | Dave Welling Nature Photography

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672950001 a wild porcupine erithizon dursatum sits in a tall tree on a national wildlife refuge just outside canadian texas united states

THIS IMAGE IS CONTAINED IN THE FOLLOWING GALLERIES:
Mammals: all other mammals