PAUL WILLIAMS / SCIENCE PHOTO LIBRARY PAUL WILLIAMS / SCIENCE PHOTO LIBRARY
North American porcupine (Erethizon dorsatum) climbing a tree in snow. North American porcupines are found throughout North America, from Canada and Alaska, into northern Mexico. This is an habituated rescued individual that has been returned to the wild. Photographed in Vermont, USA.
Model release not required. Property release not required.