Strong bodies, sharp teeth and lightning speed are the characteristics of some of the most terrible animals in the animal kingdom. But other animals are also tenacious. Maybe they are not strong, but they can cope with dangerous environment easily. There are many seemingly impossible animals, but they can tolerate or adapt to harsh environment. The following are 10 animal species with the strongest vitality and adaptability in the animal kingdom. 1. Camel: Camels, the ultimate desert dwellers, obviously should be included in the list. Two-humped camels are mainly distributed in Asia, and single-mountain Arabian camels (also called dromedaries) are distributed in West Asia and North Africa. This animal can walk for a long time without drinking water. Their body temperature is not affected by environmental changes, and they can tolerate 25% weight loss caused by sweating without dehydration. 2. Slow-moving animals: life under a microscope This eight-legged animal may actually be everywhere, although they often appear in moss and mosses. Sometimes they are called "water bears". They can survive in boiling water and frozen environment in the Arctic. They can also withstand 1000 times more radiation than humans. 3. Cockroaches, mosquitoes and earthworms are difficult to be killed by pesticides, poisons and even high radiation, and they are also one of the rare animals that can survive the nuclear disaster. Mosquitoes lack the hard shell and fierce appearance of cockroaches, but they are productive animals. Because of their ability to spread diseases, they may be one of the most terrible animals in the world. Earthworms have a rare ability to regenerate. Theoretically, even if it is cut off, it can be regenerated quickly. Earthworms are also prolific animals, hermaphrodites. 4. Eat Turkey: A seemingly weak and deadly bird. Although it is smaller than an ostrich or an emu, this flightless bird in New Guinea and Australia is very dangerous. Their sharp claws and flying kicks can tear the skin, and the wounds are fatal to animals and humans. These usually timid animals are also known for their initiative, and they will pursue even if their victims no longer pose a threat to them. 5. Crows and sparrows: Urban survivors are familiar with crows. This larger bird is active in the field of human beings, and it is not allowed for oncoming cars to interrupt their delicious food until the last moment. Sparrows can also live happily in human territory. They have learned to look for delicious food in outdoor restaurants or parking lots. They can survive in severe winter. 6. Siamese fighting fish, lungfish and? Fish? Fish are not afraid of sharks, which are the fiercest animals in the ocean. These sucker-shaped fish are attached to sharks, and they follow them wherever they go. Can also be protected. Siamese fighting fish can not only move in fish tanks and tear their opponents to pieces, but also live in ponds and small pools in the wild, because they have an organ called "maze" that can breathe air. Lungfish is famous for its different organs from fish. These fish are mainly distributed in Africa. When there is no rain in the dry season, it will wrap itself in a mud shell and hibernate until the rainy season comes. 7. Coyotes: Unlike their close relatives wolves, urban residents can live on the edge of the city. They often appear in remote areas and even around cities. 8. Hyenas: Dangerous omnivores. These omnivores are very strong, dare to steal food from lions, and even dare to challenge humans. Spotted subspecies are skilled "hunters", while other kinds of hyenas eat everything, usually on animal carcasses. Camel spiders: This spider is actually a close relative of the scorpion. This kind of spider is active in arid areas and is famous for its fast running. It can stand up and run forward at the speed of 16 km per hour, easily surpassing most carnivores. 10. Black mamba snake: This deadly snake is fast and long, and it is very common in South Africa. It is one of the fastest crawling snakes in the world and one of the largest snakes in the world, with an average length of 8 feet. In addition, it has deadly venom, and half of the people bitten by it will die.