I've seen it in the market. It is forbidden to buy and sell puffer fish. "Why is it forbidden to buy and sell puffer fish?" I asked my father puzzled. Dad said solemnly, "Because puffer fish is poisonous!" " "I'm curious. I must know what poison puffer fish has. So I looked up the information on the internet and found it.

The puffer fish has a short and thick body. Pufferfish have very thin spines. Tough and thick puffer fish skin was once used to make helmets. The upper and lower teeth of puffer fish are connected together like sharp blades. This makes it easy for puffer fish to crush hard coral shells. Most puffer fish are tropical marine fish, and only a few species live in fresh water. Once the puffer fish is threatened, it will swallow water or air to expand its body into a spiny ball, making it difficult for natural enemies to shut up. The viscera of many puffer fish contains a neurotoxin that can kill people. Someone has tested the toxicity of tetrodotoxin. Its toxicity is equivalent to 1250 times of the highly toxic drug sodium cyanide, and only 0.48 mg can cause death. In fact, the muscles of puffer fish are toxin-free. The most poisonous parts of puffer fish are ovary and liver, followed by kidney, blood, eyes, gills and skin. The toxicity of puffer fish is also related to its reproductive cycle. The puffer fish with eggs is the most toxic in late spring and early summer. This toxin can make people nervous paralysis, vomiting, cold limbs, and then stop heartbeat and breathing.

I see. The puffer fish is really poisonous. No wonder there is an old saying: eat puffer fish to death. However, puffer fish is extremely delicious, and it is also called "Three Freshness of the Yangtze River" with shad and swordfish. There is an ancient saying: once you take a bite of puffer fish, you will never smell the fish in the world again. Enough to show the delicacy of puffer fish. Moreover, puffer fish has high medicinal value. Valuable medicinal materials such as tetrodotoxin, tetrodotoxin and tetrodotoxin can be extracted from the toxins in liver and ovary.

The puffer fish is really full of treasures!