Porcupine Facts

Porcupines are large, slow-moving rodents with sharp quills on their backs. They are found on every continent except Antarctica. Scientists group porcupines into two groups: Old World porcupines, which are found in Africa, Europe and Asia; and New World porcupines, which are found in North, Central, and South America. The North American porcupine is the only species found in the United States and Canada.

Sharp Quills

All porcupines have a few traits in common. The most obvious trait is the long, sharp quills that cover their bodies. Some quills can get up to a foot (30 centimeters) long, like those on the Africa's crested porcupine.

Female porcupines carry their young for a gestation period of 16 to 31 weeks, depending on species, and give birth to one to three babies at a time. Baby porcupines are called porcupettes. 

Porcupettes are about 3 percent of mother's weight at birth, according to the San Diego Zoo. At birth, they have soft quills, which harden in a few days. Porcupettes mature at nine months to 2.5 years, depending on species and can live up to 15 years in the wild.

The largest porcupine is the North African crested porcupine which grows up to 36 inches (90 centimeters) long. The smallest is the Bahia hairy dwarf porcupine which grows up to 15 inches (38 cm) long. Porcupines weigh 2.5 to 77 lbs. (1.2 to 35 kilograms), depending on species, and their tails can grow up to 8 to 12 inches (20 to 30 cm).

Quill length varies by type. New World porcupines have small quills that are around 4 inches (10 cm) long, while Old World porcupines have quills that can grow up to 20 inches (51 cm) long, though there are some exceptions.

Though they don't eat meat, porcupines chew on bones to sharpen their teeth. Bones also give them important minerals, like salt and calcium, to keep them healthy. Porcupines are also known to eat bugs and small lizards every now and then.

Pest Tips

In general, porcupines live in just about any terrain, including deserts, grasslands, mountains, rainforests and forests. They make dens in tree branches or tangles of roots, rock crevices, brush or logs.

 

Trivia

Porcupines use the quills as a defense. They may shake them, which makes them rattle, as a warning to potential predators. If that doesn't work, they may charge backwards into the predator. The quills are loosely attached but cannot be thrown or projected. Some quills have scales or barbs that make them very hard to remove. Once a quill is lost, it isn't lost forever as they grow back over time. A North American porcupine can have 30,000 or more quills.

Porcupines are nocturnal, which means they are active during the night and sleep during the day. During the night, they forage for food. New World porcupines spend their time in the trees, while Old World porcupines stay on the ground.

Porcupines aren't really social. Both types of porcupines are typically solitary, though New World porcupines may pair up. A mother porcupine and her young form a family group called a prickle.

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