When frightened, curl up to the abdomen, and the thorns protrude in a prickly ball to guard against the enemy. Hedgehogs in the Far East can kill a lot of harmful insects and eat mice, so they are good for agriculture, forestry, animal husbandry and human health.
Hedgehog is short and fat, with pointed claws, small eyes, short hair and short and dense thorns all over. Hedgehogs are nocturnal and mainly feed on insects and worms. It can eat 200 grams of worms in one night, curl up into a ball when attacked by the enemy, and protect itself by stabbing outward. When I was born, I was soft and blind.
Extended data:
Hedgehog is gentle, and some species are only slightly larger than the palm of your hand, so some people in Australia and Britain keep it as a pet. Ordinary hedgehogs are not easy to keep as pets. As a pet, hedgehog is a hybrid of common hedgehog and African "four-toed hedgehog". They don't hibernate, they are small and not cold-resistant.
About 90% female hedgehogs can enter estrus after sleeping, and can get pregnant at the first mating 1. The gestation period is 34 ~ 37 days, with an average of about 35 days. The lactation period is about 40 days. After weaning, female hedgehogs can enter estrus again, so a few female hedgehogs can breed twice a year. L ~ 7 nests per nest, mostly 3 ~ 6 nests, with an average of 4.5 nests.
Young hedgehogs are about half male and half female, but in some cases, identical twins are of the same sex. After the second lactation, the hibernation season begins gradually, and the breeding season and hibernation season alternate, each lasting about half a year.
Hedgehog is a small mammal with a body length of only 25 cm, and the adult hedgehog can weigh up to 2.5 kg. The back and side of the body are covered with thorns, and the head, tail and abdomen are hairy; Long and sharp mouth, small ears, short limbs and short tail; There are five toes in the front and rear feet, and the bottom line of the foot, and a few kinds of forefoot have four toes; When curled up in a ball, the head and four feet are invisible.
When frightened, its head bends to the ventral surface, its body curls up into a ball, wraps its head and limbs, and stands up with thorns to protect itself. Unlike porcupines, hedgehogs don't lose their spines. Hedgehog's nose is very long, and its sense of touch and smell are well developed. Its favorite foods are ants and termites.
Baidu encyclopedia-hedgehog