Threatening behavior by predators causes a porcupine to extend its quills, and fishers are predators that can eat porcupines. Given these facts, what might a porcupine do if threatened by a fisher among the following options:
- dig in the dirt
 - Decrease bodily water
 - killing insects
 - lower its quills
 - kill them
 - humans disturb it
 - show its teeth
 - show its quills


 

        show its quills 