There was a "dragon expert" Liu Lei in Xia Dynasty. According to legend, he kept two live dragons. What did he raise?

Liu Lei, an expert in raising dragons in Xia Dynasty, is said to have kept two live dragons, which should be a kind of deer that people had never seen at that time. According to legend, Kong Jia, the eighth monarch of Xia Dynasty, found two dragons, one male and one female, when he went out hunting. So people tried their best to bring the two animals back to the palace, and at the same time let special people build a palace for the two animals to live in.

However, no one can raise these two "dragons", so the monarch issued an imperial decree to let all ministers go to the national job fair to raise talents. Later, a man named Liu Lei was invited to raise dragons, but he only knew how to raise them, that's all.

Then one day, Kong Jia heard from the minister that immortals used to ride dragon carts. He wanted to try, so he asked Liu Lei to prepare. Liu Lei could only raise them, but not domesticate them. As a result, one of them was exhausted and couldn't help killing both dragons and skinning them for the emperor, who had never eaten such delicious meat.

Liu Lei cooked dragons for Kong Jia, which was a very interesting behavior, because at that time, after all, no one had eaten dragon meat. I wonder if this dragon meat can be eaten. What if Kong Jia is poisoned? Instead of getting rid of the dead dragon, Liu Lei cooked it and gave it to the monarch Kong Jia. What's the motive? Maybe only he knows. In the long history of 5,000 years in China, there are many legends about dragons. As the spiritual totem of China, it deeply entered the history of China.