4.6 Billion Year Symphony of Evolution

Do you want to keep up and see?

Leviathan flew over the river formed by the heavy rain. The desert is so dry. This rainstorm should be hard to come by, but where will the water flow?

Lin felt it necessary to investigate.

The heavy rain on the sky is still going on, but it is strange that it seems that only the rain above the desert, and in the jungle, Lin's two bases do not feel any rain.

Is the twisted trunk blocking the water? Not very likely, the only possibility is that the cloud only appears in the desert.

Leviathan followed the river in the rain, the speed of the water continued to accelerate with the increase of rain, and eventually became an unstoppable flood. It smashed the sand dunes and washed away the boulder, slamming in the desert with unstoppable momentum. Going southwest.

The rainstorm lasted for two days and nights. After the rain stopped, Leviathan still followed the river and flew southwest. Lin suspected that it had now reached the center of the desert. Even if it flew over a thousand meters, it could not see. To the shadow of the twisted jungle.

However, Lynn saw more strange things in front of the river.

On the far sand, there is a huge cave. Just visual inspection, Lin can calculate that the diameter of the cave is more than one kilometer wide. The cave has a spiral ladder structure, one layer after another. It leads to the depths, and each layer is narrower than the previous one. The whole cave is several hundred meters deep. In the deepest layer, it is only a few tens of meters wide, and the bottom layer is covered with a layer like white. Things like sand.

This is really amazing. How did it form? Even if you look at the sky above the kilometer, the cave is huge, like a huge wound in the desert. Maybe it shouldn't be called a cave, but it is better to call it a ‘big pit.’

The crater is made up of rocks. The stones inside seem to be chapped by the white light. There is no trace of water inside. It seems that this position is completely rainless. The rushing river rushes into the crater and spirals along the pit. The structure rushed straight to the bottom of the pit, and the cracked rock pit was suddenly irrigated by the water. Lin seemed to hear the popping sound of the stones being contacted by the water.

This seems to be called 'thermal expansion and cold shrinking'?

But even such a huge torrent can only fill about 30% of this huge pit, and there is a turbid big lake filled with sand and mud.

This is really fun, there is no reason not to look at it.

Lin let Leviathan slowly lower the height. When approaching the crater, Linton felt that the surrounding airflow seemed strange. There seemed to be a stream of air trying to drag Leviathan into the pit, but the airflow was not very strong. Lin adjusted the flight posture almost in an instant and continued to fly into the pit.

On the way to the crater, Lin found that there were many holes on the spiral steps around one or two meters in diameter. It felt very strange. Is there a creature living in it?

Leviathan flew to the lake in the pit. Because the water was too turbid and could not be seen clearly, Lynn released a fish-shaped explorer and threw it into the water. It mainly wanted to see what the bottom of the pit was like.

In the face of the turbid water filled with sand, the visibility is only about ten centimeters even under the illumination of the lantern. The explorer uses the sense of smell and the auditory tentacles to measure. After reaching the bottom of the water, that is, the bottom of the pit, Lin begins to carefully observe the bottom of the pit. The rock composition, the layer of white sand that was seen before the flooding was gone, was it mixed with water?

It is so suspicious that such a huge pit appears in the desert and is not buried by sand. Lin believes that there is a great possibility that there will be living creatures here, and that the dust in the entire pit will be cleaned.

But... Is this pit likely to be dug out by creatures? This feeling is not very likely, let's not mention the difficulty of dug such a huge pit in the desert, and what is the significance of digging in this? Waiting and collecting rainwater that is hard to come by? Twisting the jungle in the northeast, even if it is on the ground, ten days and nights must have arrived. There is no need to dig in this pit. Even if it is a large creature like hundreds of fog worms, it will take several years. Time can dig out such a big place.

The more I study, the more I feel, the more strange it is. It thinks it is necessary to set up a base here to observe the changes here.

Just as Leviathan prepared the base, the explorers in the water suddenly felt a wonderful shock, as if many small creatures were suddenly swimming.

this is……

A small, worm-like creature about a few millimeters writhed in front of the explorer's eye and slowly swam.

worm? Is it the creature that was originally at the bottom of the pit?

Then, there are many worms that appear in the explorer's field of vision. They seem to pop out, and more and more, even with only a small degree of visibility, but the explorer's vision is now filled with countless small Worm, Lin feels that their number seems to exceed the sand in the water.

Where did these things come out? Originally at the bottom of the pit? Or was it rushed here by the river in the desert? Um... The first possibility is obviously very big.

Lin let the explorer swim around the bottom of the water. It found many small round spheres on the ground. The explorer stretched out the tentacles and grabbed a sphere. I saw that the sphere slowly cracked a seam, and then one Only small worms are drilled out of the seam.

This is their egg. The explorer found countless eggs on the rocks at the bottom of the water. Is there a big worm to lay eggs here? Then let the eggs and other treatments become water?

This is really fun, so that this pit is made by worms? But it is too sloppy to say this. I don't know how long these worms can grow. They look like they are fleshy. They don't have a bit of a pink shell. They shouldn't be the monsters of the foggy worm.

Then why do you have to be born in the pit, not going to the jungle to give birth? There is no food here, just just rain.

When Lin was thinking, Leviathan suddenly felt a lot of noise coming from the air. Lin looked up and saw a myriad of figures flying around the crater.

Those are... giant veins? What are they doing here?

There may be hundreds of cockroaches in large numbers, and they flew into the craters. They were somewhat jealous of the huge Leviathan wingspan, but they still flew all over, mostly on the surrounding steps, while others were The surface of the water flies around.

Lin thought that they came here to catch the worms, but after watching it for a long time, they didn't try to catch the insects, but made some strange moves.

Some cockroaches began to lie on the other cockroach, and then the one that squatted on the top bent the forward tail and inserted it on the head below, while the lower sill also bent the tail and inserted it above. In front of your chest.

It turns out that it is reproductive activity.

Most organisms in the water would like to spray the cells directly into the water to reproduce, and the creatures on the land can't do this, so they are more direct, and the germ cells are directly injected into the other's body.

Lin watched a pair of cockroaches. After they had made it for a while, they separated. They used to run on the top and went to find other ones that hadn’t been made, while the bottom one bent the tail, which was on the water. click.

It seems that the above is male, the lower is female, the female is spawning on the surface of the water, the male and female body of the giant veins are almost the same. On the way of observing the creatures, Lin found that most of the males are responsible for collecting the Kinds of evolutionary information, generally they will fight each other, strive to become the strongest to find females, females generally do not fight, but responsible for the direct manufacture of offspring, so the body shape will be different over time.

Although males prefer to fight, they are usually stronger, but they do not necessarily have a male-to-female situation. For example, sharks are females that are larger than males and may be related to the dangers they encounter when they are produced. After all, males are finished. Run, and the females have to face the more terrible creatures that feed the cubs, such as the Duns fish.

This type of reproduction is quite fun, and it can ensure that the offspring are the strongest offspring, but there are some problems, such as making the species become uncooperative, fighting each other in the same kind. Lin believes that evolution is based on solidarity. After all, only the most united single cells can become multicellular organisms.

It seems that there are no such problems, so both males and females look exactly the same.

Leviathan released more explorers who found the eggs of the females on the water. These eggs also met the water of the worms, and a small arthropod that looked like a dragonfly was drilled out. And began to hunt small worms nearby.

This is really a clever way to breed, but this big pit can't be made. They should just accidentally discover that there are worms before they come to lay eggs.

So, what is going on in this pit?

Lin is more and more interested in this place.

........................................................................

Thanks ~ soul seeker ~ 688~!

Thanks to ~godmorgan~ for the reward~

PS: Giant pit reference map: [[[CP|W:210|H:140|A:C|U:]]]