Porcupine

Porcupines are plant-eating rodents whose quills provide protection when threats come close. Old World and New World porcupines belong to different families and vary in body form and climbing ability. Some are mainly ground dwellers, while others feed and rest in trees. Bark, leaves, roots, fruit and other vegetation contribute to their diets. Warning postures and movements can expose the quills, but a porcupine cannot launch them through the air.