Characteristics
Range
Habitat
Diet
Life Cycle
Behavior

Characteristics
PorcupineThe porcupine is a rodent. It has black to brownish-yellow fur and strong, short legs. It has hairless soles on its feet that help it climb trees. It has a round body, small ears and a small head. The most recognizable feature of the porcupine is its quills. A porcupine may have as many as 30,000 quills. The quills are hairs with barbed tips on the ends. Quills are solid at the tip and base and hollow for most of the shaft. The porcupine has quills on all parts of its body, except for its stomach. The longest quills are on its rump. The shortest quills are on its cheeks.

The porcupine uses its quills for defense. The porcupine cannot shoot its quills. When a predator approaches, the porcupine will turn its back, raise the quills and lash out at the threat with its tail. If the porcupine hits an animal with its quills, the quills become embedded in the animal. Body heat makes the barbs expand and they become even more deeply embedded in the animal's skin. If an animal is hit in a vital place it may die. The porcupine is not an aggressive animal. It will only attack if it is threatened. Some animals, like the fisher, are experts at attacking porcupines.

Life Cycle PorcupinePorcupines mate in late summer and early fall. Porcupines are very vocal during mating season. Males often fight over females. The male performs an elaborate dance and sprays urine over the head of the female. Seven months after mating the female gives birth to a single baby. When the baby is born, its quills are soft. They harden about an hour after birth. The baby is begins to forage for food after only a couple of days. The baby will stay with its mother for about six months.

Behavior PorcupineThe common porcupine is a solitary animal, although it may den with other porcupines in the winter. It makes its den in caves, decaying logs and hollow trees. The common porcupine doesn't hibernate, but it may stay in its den during bad weather. The common porcupine is a good swimmer, its hollow quills help keep it afloat. It is also an excellent tree-climber and spends much of its time in trees. It is a very vocal animal and has a wide-variety of calls including moans, grunts, coughs, wails, whines, shrieks and tooth clicking.