A captive baby porcupine (Erethizon dorsatum), Animals of Montana, Bozeman, Montana, United States of America, North America

A captive baby porcupine (Erethizon dorsatum), Animals of Montana, Bozeman, Montana, United States of America, North America

Capitive porcupine (Erethizon dorsatum) sitting on hind feet eating an apple, Sandstone, Minnesota, United States of America, North America

Indian crested porcupine (Hystrix indica, Hystrix leucura), female with young animal, native to the Middle East and India, captive, Germany, Europe

Indian crested porcupine (Hystrix indica, Hystrix leucura), female with young animal, native to the Middle East and India, captive, Germany, Europe

Indian crested porcupine (Hystrix indica, Hystrix leucura), young animal, native to the Middle East and India, captive, Germany, Europe

New World porcupine (Urson Erethizon Dorsatum) climbing on a branch, captive, France, Europe

New World porcupine (Urson Erethizon Dorsatum) sleeping on a branch, captive, France, Europe