75% of the earth is covered by oceans, so life in the ocean is far richer than life on land. The ocean is home to some of the most unusual, mysterious, and deadly animals on earth. So, here are some animals that are very deadly to humans, let’s take a look at the list. The top ten most terrifying animals in the world

10. Flowered sea urchin

9. Barracuda

8. Cone snail

7. Leopard seal

6. Stonefish

5. Blue-ringed octopus

4. Box jellyfish

3. Sea snake

1. Shark 10. Flowered Sea Urchin

Some of you have encountered a sea urchin. Although it is beautiful, don’t be fooled by its appearance. Attractive, the flowered sea urchin is listed as the world's "most dangerous sea urchin" by the Guinness Book of World Records, an echinoderm you don't want to stand around. The creature contains a venom that contains at least two dangerous toxins; a neurotoxin, which causes spasms of smooth muscles; and a podotoxin, a convulsant-causing protein toxin that can cause Convulsions, shock and death. 9. Barracuda

The photo above should make it clear why barracudas are on our list. They can grow up to 6 feet long and are equipped with a terrifying set of super-sharp teeth. There are actually 22 species of barracuda, but only large barracudas attack humans. The diet of a barracuda consists mainly of small and medium-sized fish. On rare occasions, a barracuda will jump out of the water and attack people on the boat. causing serious injury to a person. In a recent case in Florida, a woman died after a barracuda attacked her and punctured her lungs. In fact, this fish also contains ciguatoxin, which makes it very dangerous. 8. Cone snails

Cone snails have always been a favorite among shell collectors, but don’t let their pretty appearance fool you, these snails are killers! These little animals have teeth and strong nerves Toxin, the teeth of some larger cone snails are so powerful that they can penetrate not only human skin, but also gloves or wetsuits. It is said that one drop of cone snail venom is enough to kill 20 people, making it one of the most venomous creatures on earth. 7. Leopard Seal

The leopard seal is actually named after its spotted skin color. This seal is at the top of the Antarctic food chain and is one of the largest seals in the Southern Ocean. Leopard seals, which can grow up to 4 meters (13 feet) tall and weigh up to 600 kilograms (1,320 pounds), are formidable predators. In addition to its size and speed, these seals are equipped with a large mouth (big enough to hold your head!) with a row of pointy teeth. In 2003, a British scientist, 28-year-old Kirsty Brown, a marine biologist, was killed by this seal. 6. Stonefish

The stonefish is one of the most venomous fish in the world. It has a set of 13 spiked spines on its back and looks very similar to rocks in the sea, so many people take it for granted. Injuried. This stonefish contains powerful neurotoxins that are not only dangerous but also painful. In fact, the fish's sting is reportedly so excruciating that victims are asked to cut off their legs. 5. Blue-ringed octopus

These tiny octopuses are instantly recognizable because of their colorful blue rings, which they spend most of their time hiding in crevices or camouflaging on coral reefs in the Pacific and Indian oceans. Yet this is one of the most dangerous animals in the ocean because it contains a highly toxic, incredibly potent neurotoxin called TTX, the same as poison dart frogs and puffer fish. It is approximately 1,200 times more toxic than cyanide, so this animal ranks fifth on this list. 4. Box jellyfish

Box jellyfish are named after their cube-shaped bodies. This jellyfish is particularly highly venomous and has a strong stinging sensation. It is found in Australia The jellyfish found off northern coasts and tropical areas of Southeast Asia is considered "the world's deadliest jellyfish." This jellyfish has killed more than 60 people in Australia alone, and the death toll is likely much higher in other areas, especially where there is no anti-venom. 3. Sea snakes

There are many kinds of sea snakes, mainly distributed in the tropical waters of the Pacific and Indian Oceans. It is believed that they evolved from Australian land snakes and adapted to life in shallow sea waters. However, many sea snakes are highly venomous and, surprisingly, their venom is more venomous than land snakes, meaning a bite can be fatal. In fact, sea snakes are usually shy, less aggressive, and rarely attack humans, but their venom is very powerful. 2. Saltwater Crocodile

Deadly on land and sea, the saltwater crocodile is the largest living reptile. This kind of crocodile is very powerful. It has the strongest bite force on the earth, 10 times that of the great white shark, and they can swim very fast in the water, up to 18 miles per hour. Needless to say, humans are often attacked by this kind of crocodile. People often lose their lives because of this.

1. Sharks

Sharks are the top predators in the ocean. It goes without saying that everyone can understand them. Sharks are usually well-equipped, large, fast, and have sharp teeth, and almost no creature can escape its mouth. However, the bull shark is the most dangerous because its kill rate is higher than 25%. This shark will consciously attack humans and is not picky about food. Therefore, among many shark species, this shark is the most dangerous.