Why don't you go along and have a look?

Leviathan flies above this river formed by the torrential rain, the desert is so dry, this torrential rain should be rare, but where does the water go?

Lynn felt the need to investigate.

The heavy rain in the sky continued, but strangely, it seemed to rain only above the desert, and in the jungle, no rain was felt at either of Lynn's bases.

Is it the twisted trunk that is blocking the water? Unlikely, the only possibility is that the clouds only appeared over the desert.

The Leviathan followed the river in the rain, and the speed of the water increased as the rain increased, eventually turning into an unstoppable flood that smashed through the dunes and washed away the boulders, surging through the desert in an unstoppable southwest.

The torrential rain continued for two days and nights, and after the rain stopped, the Leviathan continued to follow the river to the southwest, and Lynn suspected that it had now reached the center of the desert, and even if it flew more than a thousand meters in the air, it could not see the shadow of the twisted jungle.

However, in the direction of the river, Lynn saw something even more strange.

In the distance, on the sand, there was a huge cave, just by visual inspection, Lin could calculate that the diameter of the mouth of this cave was more than a thousand meters wide, and there was a spiral ladder-like structure in the cave, one layer after another leading to the depths, and each layer was narrower than the previous layer, the whole cave was hundreds of meters deep, and in the deepest layer, it was only about a few dozen meters wide, and the bottom layer was covered with a layer of things like white sand grains.

This is amazing, how did it come to be? Even at a height of thousands of meters, this cave looks huge, like a huge wound in the desert, maybe it shouldn't be called a cave, but a 'giant crater'.

The pit is made of rocks, and the stones inside seem to have been cracked by the daylight, and there is not the slightest moisture in it, it seems that there has been no rain at all in this location, and the rushing river rushes into the pit, and rushes straight to the bottom of the pit along the spiral structure in the pit, and the cracked rock pit is suddenly irrigated by the water, and Lin seems to hear the popping sound of the stones coming after being touched by the water.

This seems to be called 'thermal expansion and cold contraction', right?

But even such a large torrent could only fill about 30% of the crater, and a large murky lake of sand and mud appeared in the crater.

It's so much fun, there's no reason why you can't go and see it.

Lin asked Leviathan to slowly lower his altitude, and when approaching the crater, Lin suddenly felt that the air flow around him seemed to become strange, as if there was an air flow trying to drag Leviathan into the pit, but this air flow was not very strong, Lin adjusted her flight posture almost instantly, and continued to fly towards the crater.

On the way deep into the crater, Lin found that there were many holes with a diameter of about one to two meters on the spiral stairs around her, and she felt very strange, could there be creatures living in them?

Leviathan flew to the surface of the lake in the pit, but the water was too muddy to see, and Lynn released a fish-shaped explorer into the water, mainly to see what was going on at the bottom of the pit.

Facing the turbid water full of sand, the visibility is only about ten centimeters even under the light of the lantern, the explorer uses the sense of smell and hearing to measure the tentacles, after reaching the bottom of the water, that is, the bottom of the pit, Lin began to carefully observe the rock composition at the bottom of the pit, the layer of white sand that she saw before the water flooded is gone, is it mixed by the water?

It was suspicious that such a large pit was found in the desert and was not buried by the sand, and Lynn thought that there was a high probability that there would be some creatures living here, and that it would sweep away the sand and dust from the entire pit.

But...... Could it be that this pit was dug by living beings? This feels unlikely, not to mention the difficulty of digging such a huge pit in the desert, and what's the point of digging here? Waiting and collecting rainwater that is difficult to appear? The twisted jungle is in the northeast, even if you walk on the ground, ten days and nights will definitely arrive, there is no need to dig a pit to live here, even if it is a creature the size of hundreds of misty worms to dig, it is estimated that it will take several years to dig such a large place.

The more she studied, the more peculiar Lynn became, and she felt the need to set up a base here to observe the changes.

Just as Leviathan was preparing for the Base Seed, the explorers in the water suddenly felt a strange vibration, as if many small creatures had suddenly appeared swimming.

This is......

A small, millimeter-sized worm-like creature wriggled in front of the explorer's eyeballs and slowly swam past.

Worm? Is it the creature that was supposed to stay at the bottom of the pit?

Then, many more worms appeared in the explorer's field of vision, as if they had suddenly appeared, and more and more, even if it was only so small in sight, but the explorer's field of vision was now filled with countless small worms, and Lin felt as if they were more numerous than the sand grains in the water.

Where did all this stuff come from? Originally at the bottom of the pit? Or was it washed up by the river in the middle of the desert? Well...... The first possibility is obviously very large.

Lynn asked the explorer to swim around the bottom of the water, and found that there were many small round spheres on the ground, and the explorer stretched out his tentacles to grab a sphere, only to see that the sphere slowly cracked a crack, and then a small worm came out of the crack.

These are their eggs, and the explorers have found countless of them on the rocks at the bottom of the water, could it be that a large worm has come here to lay eggs? And then let the eggs and other treatment melt into water?

This is really funny, so this pit is made of worms? But it's too hasty to say that, I don't know how big these worms can grow, and seeing that they are covered in flesh and don't have a bit of a carapace, they shouldn't be the pups of monsters like the Mist Worms.

Besides, why do you have to be born in a pit, not in the jungle? There's no food here, it's just raining.

As Rin was thinking, Leviathan suddenly felt a loud noise in the air, and Rin raised her eyes to see countless figures flying around the crater.

Those are...... Giant veined dragonfly? What are they doing here?

There were probably hundreds of dragonflies in large numbers, and they flew into the crater, some of them afraid of the Leviathan with a huge wingspan, but they all flew down, most of them resting on the surrounding stairs, while others flew around the water.

Lin thought that they had come here to catch worms to eat, but after watching for a long time, the dragonflies did not try to go into the water to catch worms, but made some strange movements.

Some dragonflies start lying on top of another dragonfly, and then the one lying on top bends its slender tail forward and sticks it on the head of the dragonfly below, while the dragonfly below also bends its tail and sticks it in front of the chest of the dragonfly above.

I see, it's reproductive activity.

Most creatures in the water like to spray their cells directly into the water to reproduce, while organisms on land can't do that, so they are more direct and inject germ cells directly into each other's bodies.

Lynn observed a pair of dragonflies, and after they had been playing for a while, they separated, the one that had been above continued to run to find the others that had not been made, and the one below bent its tail and dotted it on the water.

It seems that the top is male, the bottom is female, the female lays eggs on the surface of the water, there is almost no difference in the size of the male and female of the giant veined dragonfly, Lin was on the way to observe the creatures, and found that most of the males are responsible for collecting various evolutionary information for their offspring, and generally they will fight with each other to become the strongest one to find the female, and the female generally does not fight, but is responsible for directly making offspring, so there will be differences in body size over time.

Although males are more likely to fight and are usually stronger, it is not always possible that males are larger than females, such as sharks, which may be related to the dangers they encounter when they give birth, after all, males run away after they get it, while females have to deal with more terrifying creatures that come to hunt and eat their young, such as Dunkle's fish or something.

This method of reproduction is quite fun, and it ensures that the offspring is the strongest offspring, but there are some problems, such as making species disunited, fighting each other among their kind, and Lynn believes that evolution is based on unity, after all, only the most united single cells can become multicellular organisms.

Giant veined dragonflies don't seem to have these problems, so both males and females look exactly the same.

The Leviathan unleashed more explorers, who found eggs laid by female dragonflies on the surface of the water, which melted in the same way as worm eggs, and a small arthropod that looked like a dragonfly burrowed out of it and began to hunt for small worms nearby.

It's a clever way to reproduce, but this big pit can't be made by dragonflies, they must have just stumbled upon worms and then came to lay eggs.

So, what's going on with this pit?

Lynn is getting more and more interested in it.

……………………………………………………………………

Thank you to ~Soul Seekers~'s 688~!

Thanks to ~godmorgan~ for the tip~

PS: Giant crater reference map: [[[CP|.] W:210|H:140|A:C|U:http://file1.biquge.info/chapters/20137/11/2718601635091726558205000192829.jpg

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