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Prickly Porcupines

By Kathy Kranking

Porcupines

A porcupine looks cute and cuddly from the front. But from the back, there’s a “sharp” difference!

What’s the first thing you think of when you hear the word “porcupine”? Maybe it’s those famous pointy quills. A porcupine has 30,000 or more of them! You might have seen cartoons showing porcupines that  could “shoot” their quills. Real porcupines can’t do that. But if a predator attacks a porcupine, the animal whirls around with its sharp quills raised. It swishes its tail from side to side. And if the attacker gets whacked, the quills will easily get stuck in its skin. Keep reading to learn more about these prickly characters. 

Porcupines

ON THE MENU
The name porcupine means “quill pig.” The quill part is right, but porcupines aren’t pigs at all. Like mice, squirrels, and beavers, they’re rodents. North American porcupines, the ones in this story, live in much of the United States and Canada (see map).

Porcupines are out and about both day and night, though more at night. They don’t hibernate, so during different times of the year different things are on a porcupine’s menu. In the spring, for example, they nibble on buds, flowers, leaves, and more. During the winter,  there’s less to eat, so porcupines live mostly on bark and evergreen needles then.

Porcupines have long, orange front teeth that never stop growing. But that’s OK, because porcupines hardly ever stop gnawing! That keeps their teeth worn down. Besides chewing their normal food, they’ll also gnaw at things such as picnic tables, rake handles, cabins, and even shoes! Why? Well, just as some people have a “sweet tooth,” porcupines have a “salty tooth”! They love the taste of salt. Human sweat contains salt, and so does plywood. So things that people have touched or that are made of plywood are salty treats to gnaw on. 

LITTLE PRICKLIES
In the spring, a mother porcupine gives birth to one baby. Some newborn animals are helpless, but not baby porcupines. They’re born with their eyes open and are able to walk right away.

At first, their quills are soft and wet. But in just a few hours, the quills dry out and become stiff little stabbers. They aren’t long enough to hurt a predator, though. So if a baby feels threatened, it quickly finds a place to hide.

A baby porcupine nurses from its mom for about four months. But it also begins eating soft plant parts when it’s just a few days old. After it stops nursing, a young porcupine will separate from its mom for longer and longer periods, until it’s ready to live on its own.

Porcupines 

AT HOME UP A TREE
Porcupines are great climbers and spend a lot of their time in trees. Long claws and rough paw pads help them get a grip. Even babies can climb young, skinny trees when they’re just a few weeks old. Climbing can be a good way to help porcupines avoid enemies.

Speaking of enemies, porcupines don’t have very many. Only a few kinds of animals know how to get around a porcupine’s prickly defenses. One is a weasel-like animal called a fisher. A fisher attacks a porcupine by biting at its face. Then, when it gets its chance, the fisher flips the porcupine over and attacks its soft belly, killing it. Some other predators of porcupines include cougars, wolves, and bears. 

SUPER QUILLS
Most animals, though, won’t mess with a porcupine. Its quills are amazing weapons. They’re on every part of the animal’s body except for its belly, face, and ears. But most are on the porcupine’s back and tail. Quills are actually sharp, stiff hairs. And some of them can be up to four inches long!

The tips of the quills are covered with tiny hook-like barbs (see art). The barbs make the quills very hard to pull out. And the ends of the quills are covered with greasy stuff that makes it easier for them to keep moving in deeper. As they do, they can cause even more problems inside a victim’s body.

An animal brave (or foolish) enough to attack a porcupine does get some warning. When a porcupine feels  threatened, it clacks its teeth together. Then it lets off a strong warning smell as it raises its quills. If that doesn’t work, the porcupine whirls around, swishing its prickly tail back and forth. Some animals might give up at this point and go find an easier meal. But if an animal does attack, it will end up with a face or foot full of sharp quills. Yow!

Porcupines have one of the best self-defense systems in nature. These walking pincushions sure can take care of themselves!

 

"Prickly Porcupines" originally appeared in the June/July 2016 issue of Ranger Rick magazine.
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