4.6 Billion Year Symphony of Evolution

This creature... is really made of bones.

This is the first thought after Lin's decomposition of the ribs. The carapace of the whole body is a creature-like skeleton. Although the general carapace has some bone components, there are still many different ones.

But the ribs are different, it is completely outside the body, and Lin found that its internal structure is not like the limbs, but it is like reptiles, organs like lungs, muscles like vertebrate, no hydraulic system.

This creature should not be an arthropod, but a creature that grows its bones like a tortoise, but this creature is too weird. It is exactly the same as the rib. The 'spine' is its body, 'rib The platoon is a limb, and there are six pairs of limbs in total. The overall shape is quite similar to that of sputum, but in fact it has only three pairs of limbs. The other three limbs in the upper body are formed by knuckles, and its fingers undergo specialization. It has the same structure as the limb, but the residual structural form of the finger changes is also seen in the body.

This is somewhat like the pterosaur's wing membrane is also propped up with fingers.

This creature is long and sinister, but it is a vertebrate. It feels quite wonderful. The most amazing thing is that there are small holes in the upper body of the three pairs of limbs that can be used to discharge a special substance.

This material Lin feels that it is collected from the corpses of various corpses. These substances are very flammable. When they come into contact with the air, they will burn a blue-green fire. So the phenomenon of the flames before, and then the ribs The small hole is blown to push the flame to attack.

This is really fun, it is estimated that the ribs are a kind of scavenging organism. They have evolved over a long period of time in the heap of dead bodies. Its body also becomes bone-like. It's quite good for camouflage. It's not just like bones, it tastes like a bone, but there are still some biting creatures with strong bite force that might attack it, so they must also have defensive capabilities, and those speeds. The slow turtles are different, their movements are very flexible, and the teeth in the mouth are also insect-like structures. Suitable for cutting bones and meat.

And their vocal cords are special, they can send out: "Ah--" screams, and Lin feels that this is more interesting than they can set fire.

But what Lin is puzzled is, why are they mixed with the blind? These two creatures should have no mutually beneficial relationship, but the ribs are indeed on the scorpion...

Lin remembered the plague fungus. Only after they were infected, different types of creatures would be mixed together. However, this cockroach was very normal, and its brain was not affected by any special influence. The judgment ability should have no problem at all. At the same time, the same is true of the blind, Lin has seen it before.

They have a certain relationship that is certain. But how to achieve it? Because the scorpion is also a scavenger? So they should be more competitive.

Leviathan put the studied cockroaches on the ground, and Susumi immediately jumped and grabbed and began to eat. He grabbed the bones and tried to bite a few times, but it was too hard to bite.

Leviathan grabbed Susumumi back and continued to fly deep into the cave.

There must be a secret of scorpion and scorpion...

There are quite a few bones on the ground of the cave. Lin feels that they are all collected from the outside, but how do they drag such big bones so far?

In the front, the cave has become narrower. Although Leviathan can still pass, Lin feels that it may become narrower and narrower. It is not very convenient.

However, after entering the depths, the feeling of 'cold' before it disappeared, and it seems that it has not affected here.

The surrounding environment is getting darker and darker, and Leviathan shines. Lin sees that the entire cave seems to be covered with bones. There are still a lot of ribs lurking in it, and now Lin can recognize them very well.

this is……

Lin found that the cave in front suddenly became wider and reached the end. The wall at the end was a completely flat wall, which was very suspicious at first glance.

Leviathan is close to the wall and stretches out his tentacles to knock. The wall is completely composed of mud and looks very soft.

"Hey!" Susumi suddenly yelled, and there was a sound of 'banging' above the wall. There were countless cracks in the entire wall, and then it collapsed and collapsed. It turned into a pile of mud. On the ground.

This structure is so fragile?

After the collapsed smoke dissipated, Leviathan’s light shone into the cave behind the cave wall, and the scene that appeared in front of him was... a large flying creature!

Countless bodies of black-flying creatures rushed toward Leviathan, which seemed to be a small pterosaur. They did not attack, but they all flew away and flew to the exit of the cave. went.

After they flew away, Lin really saw the structure of the cave.

This is... water?

Behind the cave wall is a huge underground lake with a width of nearly 100 meters. Occasionally there will be wonderful brilliance in the lake, and there may be glowing microbes living here.

Leviathan stretched out his tentacles and created a transparent cover that was placed on Susumi’s face. Lin called it a 'filterer' with a small set of organs at the bottom that could filter the water. The air breathes Susummi.

"Hey? What is this?" Susumi curiously fiddled with the cover on his head.

"Don't get it, you can get air in the water."

When Lin said, the filter instantly expanded after inhaling the air, and Leviathan also entered the water.

"Water! Water!" Susumi shouted excitedly in the hood, while Lin was observing the surrounding environment. Through the light radiated by Leviathan, Lin saw that the lake was covered with dense crystals, and occasionally Highlight a huge crystalline column.

There are still many scorpions on the crystals at the bottom of the lake. They are completely amphibious creatures.

There are still a lot of fish here. Some small fish swim around Leviathan. Susumi is trying to catch them on the back of Leviathan. I don’t know if these fish swim in from outside or are they Other creatures brought in.

If you are coming in... there may be some passages that can pass outside.

Under the bottom of the lake, Leviathan has seen a lot of caves. They are different in size, and they are covered with crystals. Some fish hide in them. Most of these fishes are not crystallized on the body. There should be a cave that can pass to the river and other places outside...

……that is……

Lin suddenly found out what was in front of him. Leviathan immediately turned off the light, and the surrounding moments fell into a darkness. At this time, in the lake, there was a lot of fluorescence, they floated in the water, now Lin can see They are said to be a tiny creature.

And about ten meters in front of Leviathan, there is a place where the fluorescence gathers. Isn't it a tiny creature, but a limb that is nearly two meters long?

The limbs are full of fluorescence, and the body is somewhat like a scorpion. Its front limbs are slender, and the lower limbs are very thick. It looks like a...leg? Does it move with your legs?

The creature lay on the crystals at the bottom of the lake, with eight eyes on its head, and they all closed up as if they were sleeping at the bottom of the lake.

This limb has a similar eyelid structure that can close the eyes? Is this the first time I saw it, or is it not an arthropod, but a vertebrate creature with bones like ribs?

But this creature has a pair of pliers and a hook, and it looks like a creature of the scorpion...

As Leviathan slowly approached, the creature suddenly opened his eyes, and the moment he saw Leviathan's huge body with his own fluorescence, he was shocked! It swayed in a panic and fled from Leviathan.

This creature mainly swims by swinging the limbs. It looks very clumsy. Leviathan can easily catch up with it. This may be a land creature. I don't know how to run into the water... sleep?

When the creature discovered that Leviathan was about to catch up with it, it immediately turned into a cave at the bottom of the lake...

The cave was too narrow, Leviathan could not enter, and Lin looked at the group of fluorescent light slowly in the cave, which seemed to be a long passage...

"Go in, escape!" Susumi went inside to see the hole. It seemed to want to catch up. Its shape was completely in, and Lin suddenly thought of a way, and then said to Susumi: "Go in, track the target, don't disturb the target,"

Said, Leviathan stuck two eyeballs on Susumi's hood, which looked like a hat with long eyes.

Speaking of it, ‘hat’ is what you wear on your head? The word feels weird...

"Oh..." Susumui wondered, and then swung his body and swam into the cave. This cave has fluorescent creatures that allow Susumumi to see the surrounding environment...

The skill of the Jade Dragon swims in water is not bad, at least faster than that creature. The fluorescence of the creature is quickly appearing in front of Lin’s eyes. Susumi keeps the distance and keeps following it, without being discovered. Walk slowly.

The passage is very long, and there are many creatures here, such as fish and various kinds of limbs, shellfish, etc. This underground structure is quite complicated.

After swimming for dozens of meters, Susumi followed the creature to swim out of the cave and reached another lake.

The lake was very small, and the creatures swam up to the shore and climbed up. Susumi also pointed his head out of the water to observe...

At the moment when Susumumi was out of the water, Lin first saw a lot of ... creature's cheekbones.

The creature walked on top of the pile of shins. It was moved by two pairs of feet in the body, while the upper body stood up and moved, but let Lin see the environment and creatures here.

This is indeed a biological population, but some are not the same... (To be continued, please search for astronomical literature, the novel is better updated faster!

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