What is the collective noun for a group of porcupines?

A group of hedgehogs or porcupines is called a prickle. A prickle is a pointed tip. Prickly can also mean irritable, but wouldn’t you be a tad miffed if you were known for only one characteristic? Hedgehogs are immune to snake venom. And porcupines are great climbers. They use their sharp, curved claws to get a good grip on trees.

Source: Grammarly