Porcupines are large rodents with coats of sharp spines, or quills, that protect them against predation. Porcupines occupy a small range of habitats in tropical and temperate parts of Asia, Southern Europe, Africa, and North and South America. They live in forests and deserts, rocky outcrops, and hillsides.

The word "porcupine" comes from Latin "porcus" pig + "spina" spine, quill. A regional American name for the animal is "quill-pig".

A baby porcupine is a porcupette. When born, a porcupette's quills are soft hardened hair. They harden within a few days, forming the sharp quills of adults.

Porcupines are seldom eaten in Western culture, but are very popular in Southeast Asia, particularly Vietnam, where the prominent use of them as a food source has contributed to declines in their populations.

More commonly, their quills and guardhairs are used for traditional decorative clothing. For example, their guardhairs are used in the creation of the Native American "porky roach" headdress.

More Info: en.wikipedia.org