In ancient China, there was a scholar named Zhou Yu, and a friend sent fresh seafood to this scholar named Zhou Yu. It was his favorite eel. It happened that he had nothing to do on this day.

Zhou Yu put the fish into the pot, and saw the eels still swimming freely in the pot, slowly heating under the pot with a low fire, and the water temperature gradually became higher. The eels did not notice the change in the water temperature in the pot at all, and they were slowly cooked. This is where Zhou Yu's excellent cooking skills lie. It is said that the eels cooked in this way will not experience the process of being killed, and the meat quality will not be tight, and the relative taste will naturally be much better.

As the pot of soup slowly boiled, Zhou Yu lifted the lid of the pot to take a look, but found a strange phenomenon. There was an eel in the pot with its body arched upwards, leaving only its head and tail in the boiling soup. The entire abdomen of the eel with its body arched was bent upwards, exposing itself outside the boiling soup, until it died, and its body still maintained its curved shape without falling down.

When Zhou Yu saw this situation, he was very curious, so he immediately took the strangely shaped eel out of the soup, took a knife, and cut open the eel's curved abdomen, wanting to see clearly why it needed to bend its abdomen so hard. In the belly of the cut eel, Zhou Yu was surprised to find that there were so many eggs hidden in it, the number was so large that it was difficult to calculate.

It turned out that, in order to protect the many eggs in her belly, the female eel was willing to immerse her head and tail in the boiling soup until she died; she was eager to protect her son and bent her abdomen to avoid the hot soup. When Zhou Yu saw this scene, he stood there for a long time, and his tears could not help but flow non-stop. He thought that the eel would sacrifice his life to protect his son, but he still had a loss of filial piety to his mother. Zhou Yu sighed and vowed not to eat eels for life, and his mother redoubled her respect and filial piety.