4.6 Billion Year Symphony of Evolution

After the blocked stone, it was still a long cave. Leviathan continued to swim deep down the cave. This cave is quite complicated. When the lake bottom enters, it goes down, and when it is blocked, it goes up. And now it's down again, and at the same time, it has added routes such as left to right. This feels like ...

roller coaster!

... What is a roller coaster?

No matter, in short, as Leviathan deepened, the original still water did not know why it began to slowly flow, and faster and faster, because it is downstream, so Leviathan becomes easier, but to Behind the scene, Leviathan was almost pushed away by this current, and the slowly flowing current had turned into a rapid.

And now this channel is just down, following gravity and water flow, Leviathan rushes down quickly!

Slowly, Lin could see the dazzling light below, and a loud roar came.

Lin made Leviathan ready to slowly open the cracks on the wings on both sides of the body. When it was close to the light, she stretched out her wings and opened the air jet behind her!

'Boom!'In this short moment, Leviathan rushed out of the water, and while spreading his wings violently, a wide and huge underground world appeared in front of Lynn.

Sure enough, it also leads below the ground, Leviathan turned his body and looked back. The place just rushed out was a big hole in the cave wall, and the endless water in the cave continued to gush out, forming a huge waterfall. Rushing towards the ground, the water formed a lake over 30 meters in diameter on the ground.

It's a really interesting environment. Now that it is open, Lin can allow a large number of troops to go underground without having to pass through the desert craters of the Inca Swarm.

Leviathan slowly flapped his wings and landed on the ground. Now Leviathan ’s wings have specially constructed a compression and expansion system that allows the wings to spread out in an instant instead of slowly expanding as before, but this also has disadvantages. , Occasionally hurting his wings, and now Leviathan had to land to the ground to repair some scars.

The ground here is not fern, but a rocky area composed of many large rocks. It is quite far away from the location of the brain keeper, but I did not expect that the underground caves can actually extend here ...

About one kilometer from the location of Leviathan, Lynn saw a huge home tree towering between the rocky grounds, topping the top of the cave up to 300 meters. It seems that the home tree may be distributed throughout the underground.

The distance from the desert to the mountain is quite far. Lin estimated that the number of home trees from here to here may be hundreds or even thousands. If there are so many home trees, each one is inhabited by the Inca swarm ... that The number of Inca swarms is huge and difficult to count.

However, it is not known whether every home tree is distributed, or whether there are so many home trees. These are not yet known. In short, they must be thoroughly researched.

Leviathan has now repaired his wings, and when Lin wants to fly, she finds that there are several fiery creatures running out from behind the rock.

This is a kind of lizard with red scales all over the body, and it is a species that Lin is more familiar with-crystal scale lizard. Even if the Chibucha insects have been extinct, Lin found that the crystal scale lizard is still vigorous, and they are scattered throughout the twisted jungle There are many types of places, and the difference between the different types lies in the color of their scales. I didn't expect this lizard to be underground, and it is red.

After looking at them, Lin flew her wings, and Leviathan planned to fly to the nearest home tree for research.

Flying over the rock area of ​​this generation, Lin saw many lizards living here, and occasionally cracks appeared on the ground, and a large amount of white mist was sprayed in the cracks. These lizards were gathered around these mists. Way of life.

Lin hasn't done much research on the environment of this underground world yet. It is indeed necessary to study the environment. This can make Lin learn a lot, so that he can also create an environment.

In order to observe the surrounding environment, Leviathan maintains a slow flight speed. There are a lot of lizards in this rocky ground. Until now, there have not been any figures of the Inca swarm, only the rocky ground and the lizard. Lin also found some other The arthropods-cockroaches are active here, this kind of cockroaches are all red, so Lin intends to call them cockroaches.

Lin intends to conduct research mainly on Leviathan. It seems that it is the edge of the territory of the Inca swarm, and the brain keeper is the central part. Lin let the brain hunter stay there temporarily and excavate the Inca worm. Behavioral research.

When Leviathan flew close to the home tree, the large stones below were less and less, and there were some potholes with a diameter of about five to ten meters. The potholes were full of clear water and were still there. Breathing the heat is probably the same as the hot springs at the foot of the ground.

There is a kind of fish in the hot springs here. Lynn has seen this kind of fish in the sea. In fact, it is not a fish. Their belly fins are thick and strong, and they can crawl on the land. There is a name to describe them as "squid fish".

It seems that they are very similar to the evolution of fish into a transitional species of terrestrial organisms, but in fact, the mudskippers and terrestrial newts and reptiles have no evolutionary relationship. They do climb from the sea to the land, but they have remained The fish looks the same, I do n’t know why?They may appear here because it was once a sea, and they are survivors, or they are somehow related to the Inca swarm ...

Looking at the various scenes in this underground world, Lin regretted that she didn't find it in winter. If it is winter, don't you know what it will be like?

Leviathan was approaching the home tree. Because Leviathan's target was too large, Lynn stopped at a distance of 100 meters, but released some pilots to observe the home tree.

The pilot first flew around his home tree and did not find any Inca worm activity nearby. There are many other species living under the tree, such as some terrestrial shellless snails, which can also be called 'slugs' '.

These slugs are huge, more than three meters long. Because Lin has also seen and killed in the twisted jungle, Lin knows that they are not a type of Inca swarm.

Slugs feed on the fallen leaves on the trees. Lin found that they are in large numbers. When Lin recently observed the Inca worms, they found that they all like to eat the creatures next to the trees in their homes. But there are so many slugs here that there is no Inca group?

The pilot carefully inspected the bark and roots of the home tree under 20 meters, and indeed did not find any wooden cave passages.

Is there really no Inca swarm here?Lynn even thought that her home trees were all planted by Inca worms ...

Confused, Lynn brought Leviathan close to his home tree, and Leviathan released the chewers, small arms used to dig wood, and they quickly dug a passage through the tree.

The home tree is different from the twisted tree. The bark is many times harder. Lin stopped after digging a small hole and began to use another detection method.

Leviathan has been staying in the lake among the peaks and is constantly studying. Lin mainly studies current, reads the brain and the like, but this method of exploration was discovered by accident.

It comes from a fish, in the muddy water at the bottom of the mountain peaks and lakes. This fish does not have vision because it adapts to the environment, but they can use a powerful method to detect the surrounding environment.

They can emit a very high-frequency 'tapping' sound, which can be transmitted to the surrounding environment in an instant, and can judge various objects by receiving the reflected back clicking sound.

Lin ’s hearing cells can receive this sound, and Lin can also imitate it, but how to classify the sound reflected by various objects is the most troublesome place. On the contrary, this fish can clearly distinguish between various objects and Kinds of living things, and Lin has been studying for a long time, and Lin also understands whether the various sounds reflected separately represent living things or non-living things.

The chewman who digs a tree hole has this organ that sends and receives sounds. Although Lin does not know whether she can penetrate such a thick home tree, she can at least know the situation in the near range.

'Tap ...'

The sound made by the chewpers slowly spread out inside the tree, while Lin waited for the sound to reflect.

... no response, second test ... third time ...

Sure enough, there was no activity of the Inca Swarm. From the reflected sound, Lin could feel that there was not even a hole in this home tree!

Then this way, this is Lin's first stop.

In a place occupied by other highly intelligent creatures, Lin did not want to choose a base to grow slowly, but directly let large troops come in and occupy a larger place.

There are Lin ’s base and many troops in the mountain lake, but most of the arms in the lake are used for hunting. Basically, there are only two types of snipers and hunters. The rest is the base body, a huge Lin ’s breeding cabin and some “defense towers” ​​used by the guards. Lynn intends to dissolve some of the troops and turn them into pure nutrients, then carry them with some arms, and then build new ones after reaching the ground.

Lin gave up the troops in the air in the glittering woodland towards the direction of the mountain, but because of the long distance, it would take some time for them to arrive.

In the process of waiting, Lynn intends to strengthen Leviathan's size, because Behemoth can't come in, so a new 'flagship' is needed in this place and Leviathan can play a good role in this role.

So, Lin began to let Leviathan prey on the slugs under the tree. Although these creatures abandoned the carapace, they could secrete a layer of toxin to cover the skin. However, for Lin, who has strong filtering ability, they are good prey and crawling. Climbing is slow.

Leviathan swallowed a lot of slugs, and Lynn began to increase its size.

The original Leviathan was more than 4 meters, Lin planned to add it to ten meters first, and the flight method was changed to use gas plus wings and jets.

Generally, arthropods grow by shelling, but Leviathan, or all of Lin ’s arms, want to increase their size by first creating a bladder to wrap themselves, then the bladder expands and grows as the body grows After completion, the capsule will split and a brand new unit will appear.

While Leviathan was slowly changing, Lynn's lake troops were also ready to start moving forward.

But why are you so anxious to occupy an area here?

Lin felt it faintly.

‘Threat’.