Xiaopang, who didn't pay attention just now, quickly heard the sound of water!

Yes, it is absolutely true that the sound of water is the sound of water.

It is almost like the big cave on the ground, and there is an underground river here.

What a good guy, a big cave underground and an underground river underground. Are the two big caves above and below twin brothers?

Xiaopang temporarily gave up exploring the cave wall and accelerated his pace toward the place where the sound of water came.

That's right, it's really an underground river.

And it is far beyond the underground river of the big cave on the ground.

This is really weird. There is a river on the ground?

How did this come about?

And what's even more strange is that this underground river is obviously full of living water, and the water flow is still flowing gurgling.

Since it is living water, it must have a source.

Maybe there are some fish or something inside?

Xiaopang's face suddenly became solemn.

It seemed to have discovered something.

Xiaopang opened his mouth, and Brother Huanxi immediately knew what it was going to do.

Sure enough, a sound wave came from its mouth.

Brother Huanxi was too clear that humans could not sense this sound wave, but animals, especially creatures in the water, could immediately detect it.

There are no aquatic creatures in the underground river on the ground, so what about this underground river? Brother Huanxi can be sure what is hidden in the water.

All curiosity was revived.

Brother Huanxi stared at the underground river with all his attention.

After a while, the water surface began to fluctuate.

There is something, but there is indeed something under the river.

The speed of fluctuations begins to accelerate.

Brother Huanxi even started to get a little nervous.

What would it happen? A big whale? An extinct creature? Or a dinosaur that only exists in the legend?

At least the name of the dinosaur also contains the word "Dragon".

A large vortex appeared on the water surface, rotating rapidly.

Then, a wave rushed up, and a black shadow rushed into the air for a moment, and then fell back into the river.

The black shadow swam quickly towards this place.

Brother Huanxi saw clearly, he saw clearly what this was.

Not a big whale or a dinosaur!

But what is this?

It is really rare to see such strange-looking creatures.

It is about 3 meters in size, spindle-shaped, and the skin is very smooth. Two valve-shaped nostrils are close together. The two fins are very short. There is a breast ~ room on each side, and the nipple ~ head is located under the armpit behind the fin limbs.

Perhaps because I have been living in the dark underground rivers, my eyes, which are already very small, have completely degenerated and I can't find it without looking carefully.

Overall, the appearance is slightly similar to that of dolphins, but it is certainly not dolphins.

Brother Huanxi sighed, he knew what this was.

He didn't know it at first, but since he met Xiaopang, he began to study marine life, especially those strange marine life.

The scientific name of the creature in front of me is "Dugong".

Of course this is a scientific name, not very famous, but it has another name, so it is famous:

Mermaid!

Yes, it's a mermaid!

But it is definitely not the kind of mermaids filmed on movies and TV.

It has this name entirely because of its living habits.

Because female dugongs occasionally have the habit of holding their cubs and breastfeeding on the water, they are called "mermaids" by others!

Since four thousand years ago, humans have begun to hunt dugongs, including meat and oil pressing, bones can be carved, and leather can be made. So far, the number of dugongs has been extremely rare.

It can even be said to be difficult to see.

But Brother Huanxi saw a living dugong here.

But the problem is, if Brother Huanxi remembers correctly, the dugong mermaid lives in the ocean, so how could it appear in an underground river?

Is the water in this underground river sea water?

Although the dugong's eyes degenerated, they immediately noticed what was summoning it to appear with their feelings. When they swam in front of them, they were there and they didn't dare to move.

It's like a child who has done something wrong waiting for the adult to scold him.

Facing such a respectful dugong, Xiaopang showed unusual dissatisfaction, and the sound waves suddenly came out again.

What's wrong? Xiaopang seems to be very angry.

After a while, Brother Huanxi will know why.

Dozens of vortexes appeared on the water surface.

In an instant, dozens of dugongs appeared at the same time.

Although the underground river is large, it still looks a bit dense by these dozens of dugongs that appear at the same time.

Among them, a dugong with a body length of at least 5 meters swam towards Xiaopang in fear.

Is this a dugong king?

The reason why Xiaopang was angry was very simple. After it first summoned, only one dugong appeared.

And it is obvious that it knows that there is far more than one dugong hidden in this underground river!

But this was not over yet. Then, the water surface kept fluctuating again, and a large number of water creatures began to appear.

Most of these brothers Huanxi don’t know them at all.

Some look like crucian carp, but not. Some are all white, like invertebrates.

It should be that the long-term life in underground rivers has caused them to mutate during their evolution.

And their common feature is that the eyes have completely degenerated.

Xiaopang sneered.

It knows why the dugong appeared first!

There are no ferocious carnivorous creatures in this underground river. Dugongs look large, but they are actually herbivorous animals.

However, it usually moves slowly, has a gentle temperament, has poor vision, and is sensitive to hearing. After eating, it is not only water to ventilate from time to time, but also likes to dive into the seabed 30 to 40 meters deep, and waits quietly in rocks and reefs, and goes from not far away from the coast to the deep ocean sea.

In the underground river, its originally poor vision was completely lost, but the moment the first dugong jumped out of the water, Xiaopang knew that even their temperament had changed:

They are no longer so lazy and slow.

They even became a little fierce.

Therefore, in the absence of natural enemies, the dugongs became the overlord in this underground river. The fish that appeared later did not dare to appear so easily when they saw so many dugongs gathered together.

It was not until Xiaopang's second sound wave summoned them and they dared to gather here.

Do you have to summon yourself twice before appearing? These dugongs are too brave.

However, Xiaopang is certain that the water quality of this underground river must be very good, because no matter what changes the character of the dugong, one thing will not change:

They have very high requirements for water quality.

They have high requirements for sea temperature and do not remove the cold sea. They are sensitive to cold and have a low water temperature of 15c, which is easy to cause pneumonia to die; poor water quality is also easy to cause skin ulcers, endoparasiosis, etc.

Unfortunately, Xiaopang is not considering water quality now, but feeling that the dragon clan has disappeared for so many years, and although the natural sense of deterrence to creatures still exists, it has been reduced a lot.

This has happened before.

The great white shark dares to attack actively, and the robber fish dares to siege themselves.

Now even dugongs dare to hear their call, no longer appear at the first time?

Xiaopang is very angry, and the consequences are very serious.

He suddenly flew into the air.

Then rush down

The target is directed at the Dugong King.
To be continued...