1. Mosquito: Unexpectedly, the most dangerous animal in the world is actually a small mosquito. In most cases, being bitten by mosquitoes will only make you itch, but some mosquitoes carry plasmodium, which can spread diseases. More than 2 million people worldwide die of malaria every year, and mosquitoes are the culprit. Therefore, mosquitoes deserve to be called "the first killer of mankind". 2.Asian Cora: People usually think that Australian poisonous snakes are the best in the world, which is good, but only if there are no Asian cobras in the world. Australian poisonous snakes only kill 1 ~ 2 people every year, but Asian cobras kill thousands of people every year. Once bitten by Asian cobra, its venom will cause permanent damage to muscle tissue, and sometimes it has to be amputated. It is the deadliest snake in the world. 3.australianbox jellyfish: a kind of light blue transparent jellyfish, shaped like a box, with four obvious sides, each side is 20 cm long, hence its name. It has a nickname "Ocean Bumblebee" because it has a stinger like a bumblebee, and that is its tentacles. Box jellyfish has 60 tentacles 15 feet long, and each tentacle has 5000 stinging cells, which is enough to kill 60 people. Once stung by tentacles, there is almost no hope of survival. 4.GreatWhiteShark: I believe that people who have seen the movie Jaws can still remember the horrible scene of a great white shark attacking people. Great white sharks can be up to 7 meters long and weigh 3200 kilograms. More than 3,000 extremely sharp teeth can crush anything, all of which are triangular, like sawtooth, and some are as long as 7.5 cm. Once bitten by it, blood will further stimulate its cruel nature and make it more angry. There are hundreds of shark attacks every year, among which 1/3 ~ 1/2 is attacked by great white sharks. 5.AfricanLion: The African lion can reach 2.5 meters in length, with a tail of 1. 1 meter and a weight of 250 kilograms. They live in groups in order to cooperate in hunting. They surrounded their prey from all directions. The lion closest to its prey will jump up, bite its throat and choke its prey to death. The rest of the lions will flock, and a big animal will soon be eaten up by them. Hungry lions often attack people. On the African grassland, lions often bite people. 6.Australian saltwater crocodile: Australian saltwater crocodile is the largest reptile in the world, and the longest male saltwater crocodile can reach 10.6 meters. It is also the most aggressive and dangerous crocodile species in the world. The head is very big, and the eyes, ears and nose are all on the top of the head. Even if you hide in the water, you can see, hear and breathe. Perhaps the most terrible thing for crocodiles is their teeth. 64 to 68 teeth are arranged in a zigzag pattern, and no animal can stand its bite, let alone people. 7. Elephant: Never mess with an elephant. This seemingly stupid and honest animal will kill you if it gets angry. Besides, the elephant bears a grudge. Once you offend it, even if you are lucky at that time, it will remember many years later. Once we meet again, we will definitely make you pay the price. The African elephant is the largest, with the adult male elephant weighing 1.6 thousand pounds, 24 feet long and 1.3 feet high. Every year, 500 people around the world die from elephant attacks. 8.PolarBear: it's cute in the zoo, but it's a "big MAC" in the arctic. They eat seals for breakfast. The polar bear is a large carnivore, with a body length of 3 meters and a weight of 770 kilograms. Although its head is small, its claws and teeth are particularly fierce, and its running speed can reach 40 kilometers per hour. Once you accidentally approach her cubs, the female polar bear will think that you are attacking her cubs. All she has to do is pat you on the head with her paws, and your brain will crack immediately. 9.CapeBuffalo: One of the largest animals on the African grassland, the adult buffalo can reach 6 feet (1 foot, about 0.3 meters), the body length is 1 1 foot, and the weight of the male buffalo can reach 1500 pounds (1 pound, about 0.5%). Although it is a herbivore, it is one of the most terrible beasts. They fought collectively, with an adult male buffalo as the leader, forming a huge phalanx to rush at the invaders, usually hundreds or even thousands, with a speed of up to 60 kilometers per hour. In this case, people will be trampled to pieces. 10.PoisonDartFrog: This frog is small in size, but beautiful in color. But don't be confused by its beautiful appearance, let alone "close contact" with it. The poisonous poison dart frog lives in Colombia, and its back can secrete a highly toxic neurotoxin, which can prevent muscle movement, lead to muscle and respiratory paralysis and eventually lead to death. A small poison dart frog can secrete enough venom to kill 10 people, and only 136 micrograms can kill a person weighing 68 kilograms.