1. Pufferfish: Pufferfish toxin is a colorless needle-like crystal, which belongs to the acid-resistant, high-temperature animal alkali, and is one of the most toxic non-protein substances in nature. One in 50 million can anesthetize the nerves in 30 minutes, and the minimum lethal amount to the human body is 0.5 mg. Although pufferfish are toxic, they are edible after processing, and are especially popular in Japan, and there are many ways to eat puffer fish, such as sashimi, fried, charcoal grilled, puffer fish pot, and boiled puffer fish in clear soup.
2. Scorpion: There are 13 poisonous spines on the back of the scorpion, and the root of the fin and the flap around the mouth contain venom glands that can secrete venom. When in danger, the scorpion will try to open its long fins as much as possible to make itself appear large, while warning the other party with bright colors. Even if the catfish falls into the mouth of the predator, the predator will have difficulty swallowing because of the fins on the scorpion's whole body, and when it is spit out, it will be stabbed by poisonous thorns, resulting in poisoning.
3, toxic soap fish: the appearance of toxic soap fish is characterized by the lower jaw slightly protruding forward, the mouth bent downward. When frightened, the body secretes a poisonous mucus, which forms a sticky bubble-like foam when the mucus meets the water, which is used to scare predators, hence the name soap fish.
4. Leopard toad fish: Leopard toad fish mainly feed on shrimp, crabs, mollusks, worms and small fish. Large leopard toad fish are resilient, with dorsal fin spines and gill cap spines that can be erected and stinged with venom. Its dorsal fin spines and gill cap spines can be erected, and the spines are venom. After being stabbed, it can cause severe pain and swelling, which can spread around, and in severe cases, it can cause stiffness of the joints of the fingers and toes.
5, poisonous catfish: poisonous catfish, seabed "ninja"; often trapped in the nearshore coral reef and rock reef, dorsal fin spines are thick skin, the base of the poisonous sac, after stabbing pain is unbearable. The poisonous catfish is disguised as an inconspicuous stone, its hard spines have a deadly poison, if stabbed by the sting of the stone fish, the toxin immediately invades the human body, the light causes swelling and pain, the heavy may cause spasms and coma. Often wait for the arrival of food in the same way as waiting for the rabbit.