Could a porcupine make a good pet? Do they ever stick themselves or other porcupines with their quills? In this latest addition to the Animal Answer Guide series, we learn about these mysterious animals' -pincushion defense, - along with the following facts:

- Porcupines survive on a diet of leaves, bark, and fruit- Quills are actually modified hairs- There are 26 species of porcupines (and counting)- Old World and New World porcupines have a common ancestor but evolved independently- New World males will gather to fight ferociously over a single female

Porcupines: The...