Breads and Grains. 1  Store-bought bagels: 1 to 2 weeks (refrigerator) or 2 months (freezer) 2  Commercial breads: 1 to 2 weeks (refrigerator) or 3 months (freezer) 3  Unopened flavored rice: 6 months (pantry)  Unopened white flour: 6 to 12 months 1  (pantry) Muffins: 1 week (refrigerator) or 2 months (freezer)
Of course, the most famous characteristic of this animal are the quills. When a porcupine is threatened, it assumes a defensive posturehead and shoulders lowered, back to the threat, every quill erect, tail thrashing back and fourth. This is usually enough to scare away any would-be predator.
Porcupine (Erethizon dorsatum) Quick Facts Porcupines can NOT throw their quills. Porcupine vision is poor, but they have an excellent sense of smell. Porcupines make shrill screeches, whines, and low grunts.