2. Blood-sucking catfish
Blood-sucking catfish is the most poisonous fish in the world. Don't judge it by its appearance. This kind of fish comes from South America and is full of spines. It will be attracted by blood and urine, and it can easily swim from the blood. If you urinate by the river and there happens to be this fish, it can easily get into your body with your urine, then enter your blood and enter your spine.
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Everyone may have heard that puffer fish is highly toxic, but it is different from other fish. It does not have the initiative to attack to inject toxins. In fact, its toxins are produced by eating it. The viscera, skin and ovaries of puffer fish are highly toxic. Although puffer fish is highly toxic, it can't inject venom into other creatures by itself. In fact, puffer fish meat is safe to eat. Lion fish is considered as a highly toxic fish, and its venom exists in the back spine, and these poisons are only used for defense. In fact, it is a timid and non-invasive fish, and when injecting venom, it is often only because some creatures are in contact with its spine. If attacked by this fish, its venom will cause severe pain, headache, vomiting, difficulty breathing, and paralysis of all muscles, including myocardium, which will lead to cardiac arrest and death.
Poisonous snake fish
Among the most poisonous 10 species of fish in the world, the poisonous snake fish ranks fourth, and it is one of the most poisonous creatures in the deep sea. Its curved fangs can reach its mouth and eyes, and it has an organ called the luminous organ, which is used to trap prey. Fortunately, poisonous snake fish are unlikely to attack humans.
Stingray is a very aggressive fish. It whips its poisonous tail out in an elegant arc, just like a scorpion stings people. Its front half can have at most seven thorns. If it breaks during the attack, its spine may be stuck in the victim's body, resulting in severe bleeding. Stingray venom can cause unbearable pain, muscle spasm, swelling, heart failure and eventually death.
Box fish is very similar to puffer fish, however, they are different. This fish will take the initiative to inject venom. If threatened by bigger fish or divers, it will inject a deadly toxin and poison the whole area around it. Therefore, other target victims and nearby creatures have also been tortured. This poison can destroy red blood cells and respiratory function.
Doctor fish
The doctor fish is essentially a kind of reef fish related to the family Callichthyidae. Their tails have spines, and they also attack people. These spines have been lurking in their tails. Once they are angered, the doctor fish will stick out their spines, just like small knives, which contain highly toxic spines and may lead to people's death.
Thorn crown thorn
Among all the starfish species in the world, the thorn crown thorn is the only poisonous starfish, and it ranks tenth on this list, which shows that its toxicity is not small. Its whole body has thorns, and this thorn is poisonous. Whenever the crown of thorns hurts people, it will release venom, which can cause severe pain, redness and swelling.