Nature is full of wonders, but also nurtured a lot of dangerous things, seemingly bright and colorful but very poisonous, the poisonous creatures in the ocean are box jellyfish, blue-ringed octopus, Belcher's sea serpent, stone fish, puffer fish, chicken heart snail.

The first box jellyfish

Mention of jellyfish, many people have been to the Oceanarium visit, will feel very beautiful and nice, there is a kind of want to touch an impulse, but not all the jellyfish are so beautiful and lovely, in the depths of the ocean, there is such a box jellyfish, the toxicity of which is prohibitive to humans, and ranked among the most poisonous creatures in the ocean!

The box jellyfish is the most poisonous creature in the ocean, and it is said that the venom of a box jellyfish can kill 250 people instantly, and the poisoned person, if he or she is in the water, may have been poisoned to death before he or she can get to the shore.

The box jellyfish, also known as the "sea wasp", is a highly toxic organisms, mainly distributed in northern Australia, and the eastern coast and the western Pacific Ocean, it has a brain and heart, tentacles full of nerve cells, in the feeling of security is threatened, the box jellyfish will use the tentacles to puncture each other's epidermis and release venom, the release of venom will invade the creature, and the release of venom, the release of the venom will invade the creature, and the release of the venom, the release of the venom will invade the creature. The released venom will invade the organism's nervous system, paralyze the muscle tissues and respiratory system, and then lead to cardiac arrest, from poisoning to death in just a few minutes.

Second place blue-ringed octopus

In the natural world, there is a common sense, that is, the more brightly colored creatures, the more intense the toxicity, so to see those green and colorful animals, as far as possible to avoid. The blue-ringed octopus is the best representative. The blue-ringed octopus and the bluefin jellyfish are the most toxic sea creatures known. The blue-ringed octopus is very small, measuring only 15 centimeters in length.

The skin on their bodies is yellowish-brown, but they can also change their color according to different environments, and they hide so y in the ocean that they are generally not easy to spot. Their bodies, including the tops of their tentacles, are dotted with numerous brightly colored blue rings, which emit a dazzling blue light as a warning to their opponent when they feel threatened.

The blue-ringed octopus possesses a strong tetrodotoxin for protection and predation. Just one bite from this small octopus can be fatal. Despite its fairly small size, a single blue-ringed octopus carries enough toxin to kill 26 adults at a time in a matter of minutes. And there is no effective antitoxin to prevent it.

Third Belcher's Sea Snake

There are about 50 species of sea snakes in the world, and the Belcher's Sea Snake, at one time one of the world's most venomous snakes, lives around the reefs of the Ashmore Islands in northwestern Australia, growing up to about 3 meters long. They inhabit the coastal offshore, especially along semi-saline estuaries, and feed on fish. In terms of venom toxicity per unit volume, they are 20 times more toxic than cobras.

The venom of the Belcher's sea snake is similar to that of terrestrial snakes and is a mixture of proteins, containing mainly neurotoxins, muscle toxins and various enzymes. It is more stable in its toxicity and is equally stable in acidic and alkaline environments. The venom it releases can paralyze its prey and ultimately lead to death in just a few seconds, and there is currently no serum available to detoxify it.

But thankfully, Belcher's sea snakes are mild-mannered and rarely attack humans, except in the case of a bite that contains strong hostile behavior. On the other hand, the Belcher sea snake's fangs are not very effective and the amount of venom secreted is relatively small, so it is not listed among the highly dangerous snakes, but care should still be taken when encountering the Belcher sea snake.

Fourth stonefish

The stonefish is widely distributed, and can be found in any sea, but it is more common in the tropics and at the interface between fresh and salt water. Its "deadly sting" has been described as the most painful sting given to humans. The stonefish is unimpressive, measuring only about 30 centimeters in length. It likes to hide on the seabed or under rocky reefs, disguising itself as an unassuming rock, and even when you stand next to it, it doesn't move so you can't notice it.

If you step on it, it will strike right back. The 12 to 14 needle-like sharp back spines on the spine will easily penetrate your body, so that you will soon be poisoned, the human body in the poisoning will immediately appear breathing difficulties, severe pain all over the body, accompanied by symptoms of chills, fever, nausea, and then will cause fainting, nervous disorders, vomiting of bile, heart failure, blood pressure drop, followed by gibberish, delirium, and finally respiratory paralysis, unconsciousness.

Fifth Puffer Fish

There are about a hundred species of puffer fish around the world, and the most striking feature is that they draw water or air into their abdomen when frightened. The most striking feature is that when they are frightened, they suck water or air into their abdomens, expanding into a sphere two to three times larger than their original size in order to scare off their enemies. Despite its name, the pufferfish migrates between the sea and rivers.

Don't look at it cute but very hurtful, as the world's second most poisonous vertebrate, puffer fish toxins are mainly concentrated in the ovaries, liver, blood, followed by the eyes, gills, and skin, individual varieties of muscle also contains toxins, the toxin is chemically more stable, after the general frying, cooking, salting and sun exposure, etc., can not be quickly destroyed, so the mortality rate of human and animal poisoning is extremely high.

These are the most important of all the toxins in the world.

Tetrodotoxin mainly paralyzes nerve endings and central nerves, resisting cholinesterase in the blood, severely paralyzing the neuromuscular system, preventing neuromuscular conduction, and causing central nervous disorders. The incubation period of puffer fish poisoning is very short, as short as 10-30 minutes, and as long as 3-6 hours. The onset of the disease is rapid and fierce. If the rescue is not timely, the fastest death after poisoning is 10 minutes, and the latest death is 4 to 6 hours. A medium puffer fish body toxin enough to poison more than 30 people.

Sixth chicken heart snail

Chicken heart snail, also known as taro snail, mainly grows in the tropical waters, usually live in the warm sea. There are about 500 different species of chicken heart snails in the world. This marine animal is carnivorous and usually feeds on marine worms, small fish, and even other mollusks. When it hunts, it buries its body in the sand, leaving only its long snout exposed. This not only allows it to obtain oxygen, but also to monitor the movements of its prey.

Hidden in its tip is a very small opening through which a venomous needle can be shot, and the venom contains hundreds of different components that vary greatly from species to species.

Some chicken heart snails contain tetrodotoxin. They also contain analgesic components that can make prey very calm before they move and die. The gaudy surface of the snail makes it easy to attract people to pick them up, and more than 30 deaths due to snail venom have been documented so far. One snail has enough toxin to kill 10 people.

Of the various types of snails, those that feed on fish as their natural food are the most poisonous, those that feed on mollusks are the second most poisonous, and those that feed on sea worms do not kill humans. After reading this is not surprised, obviously some creatures are lovely and beautiful, on the contrary, highly toxic, in the ocean, hidden a lot of tiny poisonous, beautiful but toxic.

In the earth where we live, there is hardly any place more dangerous and mysterious than the ocean. The ocean is incredibly deep, and in the depths of the ocean floor, there is a good chance that there are still a multitude of highly toxic organisms that humans have yet to discover. Therefore, at all times, we must hold the ocean in awe.