they grow back the same as hair
The porcupine provides most of the quills used for writing, not a bird. The quills are taken from the porcupine's back and used as pens.
a porcupine has quills
The correct spelling is "porcupine." It is a large rodent with spikes or quills on its back for protection.
An adult porcupine can have up to 30,000 quills on its body.
A porcupine has quills to defend themselves against harm's way (defend them from predators).
it has about 30,000 quills
the porcupine is born with its quills a@#$@#*.
Porcupine bristles are called 'quills'. The quills are large and hollow.
Porcupine quills can range from 6 cm to over 20 cm in thickness.
The quills area porcupine's best defense. If a porcupine did not have any quills, it may not be able to defend itself.
Porcupine
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.