Martens, wolverines, pythons, eagles, great horned owls, fisher cats and wolves.
Fisher / Fox
A porcupine has quills to defend themselves against harm's way (defend them from predators).
Its spikes, called quills ; this defensive adaptation protects the docile porcupine from predators.
their quills so they can defend themselves from predators.
Porcupines have quills which look like needles on their backs. These protect the porcupine against predators and come contain a poison.
Their bristly spikes make them really hard to get to.
Sounds like a porcupine.
the porcupine is very flexible as in it can be almost anywhere in the world with few to zero predators. But it can also become dinner as a delicacy in Kenya East Africa.
Its spikes, called quills ; this defensive adaptation protects the docile porcupine from predators.
I think it serves as they're protection against predators.
Due to the large quills that protrude from a porcupine's back there are very few predators that are willing to attack them. Some animals, however, have worked out that the stomach of the porcupine has no quills and there work at flipping them on their back to eat them. These animals are Fishers, bobcats and cougars.
Defense. Predators leave it alone, so it lives and grows up to have more baby porcupines.