1, strong defensive ability: this genus of animals is famous for its thorns, which can defend the enemy, up to 35 cm long.
2, high sensitivity: when encountering an enemy, the thorn will stand upright and shake, making a rustling sound. In an emergency, you can retreat, then pounce on the enemy and insert the thorn into its body.
3, porcupine body hypertrophy: the maximum length is more than 70 cm; Small head, small eyes, short and thick limbs; There are long and hard spines on the back and tail, which are important organs to defend against natural enemies.
4, the tip of the head is small: the skull is small, the zygomatic arch does not expand, but the nasal cavity is very large; There are 20 shallow roots.
5. Cave dwelling: activities at night, and often have a certain route. When you walk, thorns rub against each other.
6. Reproductive capacity: one year 1 time, 1 giving birth to four offspring.
Features of the porcupine nest: Although the porcupine nest was dug and built by itself, it mainly expanded and trimmed the old nest of pangolins and termites. Its nest structure is complex, usually consisting of main nest, auxiliary nest, blind hole and several tunnels. There is a small tunnel in the blind hole, which is a place to take refuge in case of danger.
Generally, there are two holes, sometimes as many as four, which open outward. There must be an opening in the weeds, which is the hole to escape in case of danger. This complex cave is the best way to effectively defend against enemy damage.
Caves, often living in natural caves, also make their own holes. The skull and mandible are porcupine type, the masseter muscle passes through the infraorbital foramen, and the incisors and enamel layers are multiple, with four buccal teeth and ridge teeth. The activity route is relatively fixed. Feeding on plant roots, I especially like to steal corn, potatoes, peanuts, fruits and vegetables in mountainous areas.
In order to prevent the enemy's attack, although the porcupine's nest was dug and built by itself, it was mainly to expand and repair the old nest of pangolin and termites. The porcupine is about 1 m long, but it is a master climber.
Baidu encyclopedia-porcupine genus