What animals sleep in summer?

1, African lungfish is the most famous summer sleeping creature. When there is enough rain, it can breathe happily with its cheeks. In the dry season, when the swamp dries up, African lungfish will get into the mud to sleep. Due to the hot weather, the mud pile outside has already dried up and become a mud hole invisibly. African lungfish opens a "small skylight" with its mouth, and then oozes a mucus from the skin, which hardens the wall of the mud hole. It goes through this hole and breathes fresh air with its lungs. It can sleep in a mud hole for several months without eating or drinking, and then it will come back to life in the water when the rainy season comes.

2. On the island of Margash in Africa, there is a mammal porcupine, which specializes in eating earthworms. In hot summer, the ground is very hot, and earthworms can't survive in the shallow surface, which makes it difficult for porcupines to get food. Due to the temporary break of the food chain, porcupines have to go into a long summer sleep. Don't wake up until autumn comes.

3. In the Sahara desert, there is a kind of Okumo. Every summer, it digs a well with a diameter of 2.5 cm and a depth of 40 cm, weaves a net at the wellhead to block the hot summer sunshine, and then hides at the bottom of the well and begins to sleep.

In the west of South Africa, there is a big wild rabbit, which is rich in fat and afraid of heat and summer. So in the summer of more than two months, it hardly eats or sleeps, and it is in the hole all day.

5. Misgurnus anguillicaudatus, who lives in the waters along the Danube, burrows into the mud when the river dries up in summer, and only relies on its special intestinal breathing air to maintain life.

6. There is a small lemur that lives on Madagascar Island in the Indian Ocean in southeast Africa. It is only 20 cm, chubby, with big eyes and a slightly shorter tail than its body. In the hot and dry season, it has the habit of sleeping in summer, when it relies on the fat stored in its tail to maintain its life.

7. Snails are animals that sleep in winter and summer. Whenever the dry and hot season comes, it hides in its shell and sleeps in summer. When late autumn comes, it begins to move again, often climbing into crevices, caves or underground seclusion, and then hibernating again. Every time a snail sleeps, it secretes a kind of mucus, which seals the mouth of the shell to resist the heat outside or the freezing cold in the ice and snow.

8. There is a four-claw turtle in Huocheng County, Yili, Xinjiang, China. This turtle doesn't have five claws on each limb like ordinary turtles, but only four claws on each limb, without webbed toes. It can't swim, so it can only stay on land and live in caves all its life, so it is also called dry turtle and grass turtle. Four-claw tortoises spend more than 300 days on the beach all year round. They not only hibernate, but also sleep in summer. (Yun Xiu)

9. Agkistrodon halys mainly exists in Shedao, Lushun Nature Reserve, Dalian, at the southern end of Liaodong Peninsula stratum. They hibernate like other snakes, but they sleep when snakes are most active in summer, because they can't find food not only in winter, but also in summer. There is only one animal in this snake island, the viper. Other animals gradually disappeared after the island became an island due to crustal movement thousands of years ago, leaving only this kind of reptile with strong endurance. In order to survive, they can eat nothing for a long time and only prey on birds when migratory birds pass by in spring and autumn, so they can only hibernate and sleep in summer and winter.

10. Sea cucumbers live in crevices of seabed rocks with dense algae and sediments at the bottom of shallow seas. This is an animal covered with thorns. Because sea cucumber feeds on small creatures, it lives a comfortable life when there are many creatures on the sea floor. However, the creatures on the seabed are also changing with the change of seawater temperature. Small creatures at the bottom of the sea are very sensitive to the cold and hot changes of seawater. When the sea surface is heated during the day, they will float. When the sea water cools at night, they will return to the bottom of the sea. Therefore, the rising of the sun and the sinking at night are the living habits of small creatures in the sea. After summer, the temperature of the upper seawater is higher because of the strong sunshine. At this time, all the small creatures on the sea floor float on the sea surface, carrying out a large number of annual foraging and breeding activities. The sea cucumber left at the bottom of the sea was forced to sleep in summer because of the interruption of food in summer. This is a habit that organisms adapt to the environment.

1 1. There is also a tree fish in South Africa. In summer, it climbed the shady side of the branches and slept for more than a month to escape the heat.

12, there is a summer sleeping dog in Africa, which is very afraid of heat. In dog days, it always wants to find a cool summer resort and sleep for more than 20 days.

13. In North America, whenever the summer heat comes, chipmunks and striped squirrels in some areas curl up in their "bedrooms" paved with leaves and sleep soundly. At that time, their bodies were as cold as death. After a while, the summer heat faded and the weather turned cold, and these little guys started to move as usual.

Generally speaking, the summer sleep of animals is another adaptation to the environment in the long-term struggle for existence.