They’re behind beavers (in second place) and capybaras, the reigning champs, which are native to South America. 3. Porcupines cannot throw their quills. When a porcupine feels threatened, it tenses up ...

When threatened, a porcupine erects its quills and moves backward towards its attacker. Consequently, careless predators may end up with quills so deeply embedded that fatal wounds may develop.