Since ancient times, we all say that fish can't live without water. In our country, although there are fish that can live for three or four hours without water, African lungfish dug up by African people from arid land can still live for three to five years even without water. Common fish in our life usually breathe through gills, so they will suffocate because of lack of water after leaving water. But African lungfish is different from common fish.
Lungfish, mainly distributed in fresh water areas of Africa, Oceania and South America, is one of the oldest existing fish lineages, and its history can be traced back to four years ago. It is an omnivorous fish with delicious meat. It can eat eat small fish, shrimp, insects and larvae, and plants best. However, this fish has almost no vision, and its prey mainly depends on its keen sense of smell. He has two respiratory organs, gills and lungs. During treatment, they breathe through their gills and breathe through their lungs after leaving the water. This lung is actually the swim bladder of lungfish, and its structure is very similar to that of lung, which means that it can breathe with gills or lungs. When the environment is extremely dry, lungfish can breathe with swim bladder instead of lung, slowing down their metabolism. For such characteristics, like amphibians, they can live in water and survive on land without water.
Every year, there is a dry season in Africa that lasts for six months. Before the dry season comes, flying fish will wrap themselves with secreted mucus in the respect mud before the water in the riverbed dries up, and then enter a dormant period. Everyone says that lungfish is an animal that sleeps in the summer. During this period, it will keep an action, not eating or drinking, so as to reduce metabolism. When it is extremely hungry, it will devour its own muscle tissue to maintain its life. In this case, the fish can live for three to five years. When the rainy season comes, the riverbed is full of water again, and the lungfish will be reborn, twist its body, break through the mud, dive into the water, and seize the opportunity to breed.
This tenacious will makes many people respect him as strong, but in a strong fish, it can't escape the claws of human beings at the top of the food chain. After African people find that this kind of fish sleeps in summer, they will go to the dry riverbed with tools, grab the flying fish hidden under the riverbed, turn it over and cut one. It looks effortless. Soon, the box is full of flying fish that are slowly waking up, but it also means that they will soon become the Chinese food for African people. In addition, African people often go to dry river beds to dig up soil to build houses and hide in mud.
Lungfish will also be used as building materials to build walls under their negligence. When the rainy season comes, the lungfish on the wall is summoned by the rain, and the scenery emerges from the wall. Therefore, it is not lungfish that hides in the wall by itself, but it is built on the wall by mistake, and it is reborn by its tenacious vitality. But even so, there is still no escape from human predation. I heard that the grilled lungfish is very delicious. If it were you, would you dare to try it?