Why do dragons in mythology all have the surname "Ao"?

Why do dragons in mythology all have the surname Ao? For example, in Journey to the West, Little White Dragon's father, the Dragon King of the East China Sea, is named Ao Guang. Of course, the dragon kings of the other three seas are also named Ao. In fact, the first reason why the dragon clan is named Ao is because of their actions. Ao itself means wandering. Think about it, the dragons swim in the water or in the sky every day. Their bodies are very huge, so they can do anything in the sky or on the earth.

Then the second reason why the dragon clan in mythology is surnamed Ao is the worship of totem. It is said that during the Three Sovereigns and Five Emperors period, one of the tribal leaders of Emperor Yan was named Ao because he was brave and good at fighting and loyal. He fought again The neutrality has done a great job. Therefore, Emperor Yan praised him greatly and sealed a piece of land for him, which was called Ao Di. At that time, all the people living in this area had Ao as their surname. And their totem is a dragon, so naturally, the dragon's surname should also be Ao.

There is also a theory that dragons are creatures from myths and legends that cannot appear in real life. No one has ever seen a dragon, so the writer who wrote about dragons may have been the first to name a dragon. Later writers imitated this, so it slowly spread that the dragon clan's surname was Ao. Of course, I think this statement is far-fetched, so everyone just take a look at it casually and don't take it seriously.

No one in this world has ever seen what a real dragon looks like. It is now impossible to verify whether it is a thing in myths and legends, or whether it really once lived in the land of China. We can only keep guessing, or one day when technology is very advanced, we can build a time machine. At that time, maybe we can go back to the distant ancient times and see if there ever was a dragon like this. kind of creature.