Porcupine, also known as porcupine, is covered with spines that pigs do not have from its back to its tail.

Porcupines are rodents.

Porcupines are distributed all over continents, and there are many families, which can be roughly divided into two categories: the eastern hemisphere porcupines are distributed in Asia, Africa and southern Europe, and the western hemisphere porcupines are distributed in North and South America.

Hedgehog is an animal with different temperatures.

They can't regulate their body temperature stably and keep it at the same level. Hybrids hibernate everywhere. Desert hedgehogs distributed in Arabia and Sahara desert sleep in summer; Its relative species, the Indian hedgehog, can live for 4-6 weeks under the condition of cutting off food and water, and the big-eared hedgehog also has a hibernation period in India. Hedgehogs have the ability to endure the decrease of body temperature and metabolic rate during the dormant period, so as to tide over the difficult period of cold, heat or food shortage. There are 6 genera and 7 species of hedgehogs in China, and the hedgehog is the most widely distributed, with thick and hard spines on the back of its body, short ears and no spines sticking out. It can be seen from the northeast and north China to the middle and lower reaches of the Yangtze River. It preys on all kinds of invertebrates and small vertebrates, and also eats plants such as roots, fruits and melons. Annual output 1 one child, 3-6 children per child. Big-eared hedgehog looks like a hedgehog, but its ears are longer, protruding beyond the spines, and it is found in Inner Mongolia, Xinjiang and other places. In the south, there are China abalone hedgehog, hairless hedgehog and Hainan new hairless hedgehog, all of which are rat-shaped species without spines, with hairy backs and slender tails.