These are called quills. They come loose and get stuck in the skin of animals that they come in contact with.
some animals are accustomed to the cactus so it doesnt hurt them.
some porcupines have quills on their nose but some dont so animals eat em by the nose.
not so sure about plants...but rhino, porcupine. A guess the cautus?
porcupine quills
Only animals that are larger than it that try to eat them. However, its quills protect it.
Hedgehog's quills are not always brown, but also white. While Hedgehogs may look like they are brown because of their quills and fur, like other animals are white underneath their fur.
No, zebras do not have quills.
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.
I have found six : porcupine, hedgehog, echidna, spiny rat, sea urchin, and tenrecs.
it has about 30,000 quills
The duration of Quills is 2.07 hours.