4.15.12 What a treat to see this porcupine today. These animals are waddlers: their two right feet advance in unison, and then they step forward with both left feet. Waddlers, including skunk, bear, opossum, and raccoons are wide-bodied animals that don't need to depend on speed for their defense. Note the raised quills on the back of this porcupine advertising its defense weapons. It waddled to the stone wall, clambered over, and stopped at the base of a 10-inch hemlock, one front foot poised to begin its ascent - if it seemed necessary.