For food, it favors the tender tissue beneath tree bark.Crested porcupines, the typical Old World porcupines, run backward, quills erect, into the enemy.They eat roots, fruit, and other vegetation.

• 冠豪猪，为典型的旧大陆豪猪，遇敌时豪针竖立，向后跑将豪针嵌入攻击者的肉里，以植物根、果实和植物的其他部分为食。