#New_World_porcupine  arboreal porcupine
  supertype:  porcupine__hedgehog  relatively large rodents with sharp erectile bristles mingled with the fur
  member of:  family_Erethizontidae
  subtype:  Canada_porcupine__Erethizon_dorsatum  porcupine of northeastern North America with barbed spines concealed in the coarse fur; often gnaws buildings for salt and grease

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