Porcupines (Blastoff! Readers: Backyard Wildlife) (Blastoff Readers. Level 1)

Porcupines have three kinds of hair: fur, guard hairs, and quills. Fur keeps these rodents warm, guard hairs keep them dry, and quills keep them safe. When in danger, a porcupine will raise its sharp quills to poke predators! This book introduces children to the unique physical features that help porcupines survive in the wild.