We all wear our armor to protect us from the evil in this world, but for most of us that armor is figurative. For the North American Porcupine (sometimes called quill pigs), that armor is very real and very spiky.
Wild horses running across the open plains are a symbol of the romanticized old west. Today, there is nothing romantic about their reality. This is due in large part to their mismanagement by the Bureau of Land Management.