Hedgehogs belong to heterothermic , a collective term for a class of hedgehog mammals in the subfamily Erinaceinae. It has short fat, sharp claws, small eyes, short hair, covered with short and dense spines, the back and side of the body are covered with spines, the head, tail and ventral surface are covered with hairs; the mouth is long and the tail is short; the front and back feet have 5 toes, and the front and back feet are 5 toes, and the front and back feet are 4 toes; and the teeth are 36 to 44, all with sharp tooth tips.

hedgehog
The hedgehog is a small mammal with a body length of no more than 25 cm, and an adult hedgehog can weigh up to 2.5 kg. The dorsal and flanks of the body are covered with spines, the head, tail and ventral surface are covered with hairs; the mouth is long and long, the ears are small, the limbs are short, and the tail is short; the front and back feet have 5 toes, and the front and back feet are all 5 toes, and the forefoot is four toes; the head and four feet are not visible when curled up into a clump. There are 36 to 44 teeth, all of which have sharp tips, which are suitable for insectivorous; in addition to the stomach, there are hard spines all over the body, and the short tail is also buried in the spines. When frightened, its head is bent towards the ventral surface, and its body is curled into a ball of thorns, wrapped around its head and limbs, and its body is covered with thorns to protect itself. Unlike porcupines, hedgehogs cannot shed their spines. The hedgehog has a very long nose and a well-developed sense of touch and smell, and its favorite food is ants and termites.
Hedgehogs who live freely in the wild will pupate pupae, rats and snakes from parks, gardens and courtyards, and are gardeners who do not pay a salary. Of course, sometimes it is inevitable to steal one or two fruits, which just shows that it is very hungry. Although he is weak and slow to move, he has a good set of skills to protect himself. Hedgehogs have thick and short spines on their bodies, and even their short tails are buried in the spines. When attacked by the enemy, its head is bent towards the abdomen, its body is curled into a clump, wrapped around its head and limbs, and its body is erected with steel thorn-like spines, like the "iron tribulus" on the ancient battlefield, making it impossible for the attacker to start. Hedgehogs burrow into nests, hide in nests during the day, and only come out after dusk.
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