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Mammal
AZ places Camping-Made-Easy
Mammal

Arizona's WildLife

"Where the Wild Things Roam"

North American Porcupine

Erethizon dorsatum
Mammal
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Look for gnawed branches in trees.

The North American porcupine is a large, slow-moving rodent covered in sharp, protective quills that deter predators. Primarily nocturnal, porcupines spend much of their time foraging for leaves, twigs, bark, and other plant material, often climbing trees with surprising agility despite their size. They are found in a variety of habitats in Arizona, including conifer forests, mixed woodlands, and rocky slopes, where they take advantage of trees for both food and shelter. Although solitary and generally non-aggressive, porcupines are well-equipped to defend themselves with their quills, which can embed in the skin of predators or curious animals. Their presence plays an important ecological role by influencing forest vegetation and providing opportunities for predators and scavengers to interact with their environment.

Mammal

Mammal

Identification & Behavior

Key Features: Thick coat, sharp quills

Size: 12–35 lbs

Behavior: Climbs trees to feed on bark.

Diet: Herbivore — bark, leaves, fruit

Activity Pattern: Nocturnal

Habitat & Distribution​

Found statewide, inhabiting forests, woodland edges, and semi-arid areas near Mogollon Rim, White Mountains, Kaibab Plateau, and San Francisco Peaks. Present in Coconino, Apache-Sitgreaves, Kaibab, and Prescott National Forests.

Elevation Range: 3,000–8,000 ft

Seasonal Presence: Year-round

Risks & Management

Do not touch; quills detach easily.

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Fun Fact: Cannot throw quills, only release on contact.

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North American Porcupine

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