4.6 Billion Year Symphony of Evolution

This creature ... really made of bones.

This is Lin's first idea after decomposing the rib centipede. The carapace on the whole body is similar to the bone structure of living creatures. Although the crustaceans of the arthropods also have some bones in it, there are still many different.

But the ribs centipede is different, it completely wraps the bones outside the body, and Lin found that its internal structure is not like arthropods, but like reptiles, organs like lungs, and muscles are similar to vertebrates, no hydraulic pressure system.

This creature should not be an arthropod, but a creature that grows bones to the outside of the body like a turtle, but this creature grows too weird, it is exactly like the ribs, and the "spine" is its body, the "ribs" The row is a limb, and there are a total of six pairs of limbs. The overall shape is quite similar to the centipede, but in fact it is only three pairs of limbs, the other three pairs of limbs in the upper body are formed by knuckles, and their fingers have been specially changed It has the same structure as the limbs, but the residual structure of the fingers can be seen in the body.

Some of the pterosaurs, like pterosaurs, are also spread with their fingers.

This creature is long and centipede-like, but it is a vertebrate. It feels quite wonderful. The most wonderful thing is that the upper body has three pairs of small holes arranged in the limbs, which can be used to discharge a special substance.

This substance Lin felt that it was collected from various corpses. These substances are very flammable. When they touch the air, they will burn a blue-green fire, so the phenomenon of the previous flame appears, and then the rib centipede The small hole blows air, in order to push the flame to attack.

This is really fun. It is estimated that the rib centipede was originally a scavenger. They have been living in the corpse heap for a long time, and their bodies have evolved like bones. They are quite good for disguise. It tastes like bones, but there are still some bone-crushing creatures with strong bite force that may attack it, so they must also have defensive ability, and unlike the slow speed turtles, their movements are very flexible, the mouth The teeth have also become insect-like structures, suitable for bone removal.

In addition, their vocal cords are special, and can scream: "Ah-", Lin thinks this is more interesting than they can set fire to.

But what makes Lin feel puzzled is why they mix with scorpions?There should be no mutually beneficial relationship between these two creatures, but the rib centipede does lie on the scorpion ...

Lin remembered the plague fungus. Only after being infected by them, different types of creatures would mix together, but this centipede was very normal, and its brain was not affected by any special effects. Its judgment ability should be no problem at the same time. The same is true, Lynn has seen it before.

It is certain that they have reached a certain relationship, but how?Because scorpions are also scavengers?So they should be a little more competitive.

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

Leviathan grabbed Susumi back on his back and continued to fly deep into the cave.

There must be the secrets of centipedes and scorpions ...

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

In the front, the cave became narrower. Although Leviathan could still pass through, Lin felt that it might become narrower and narrower. It was not very convenient to be too big.

However, after entering the depths, the feeling of "cold" outside disappeared, and it seems that it did not affect here.

The surrounding environment became darker and darker, and Leviathan lit up. Lynn saw the entire cave seemed to be covered with bones, and there were many ribs and centipedes lurking inside. Now Lin can recognize them well.

this is……

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

Leviathan approached the cave wall and reached out with a tentacle to knock it. The cave wall was completely made of mud and seemed very soft.

"Gay!" Su Sumi suddenly yelled, there was a "bang" sound above the cave wall, and there were countless cracks in the entire cave wall, which immediately cracked and disintegrated, and turned into a pile of dirt. On the ground.

This structure is so fragile?

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

Countless black creatures squeaked toward Leviathan with a squeaky noise, this seems to be a small pterosaur, they did not attack, but all flew away at once, flying towards the exit of the cave went.

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

Is this ... water?

Behind the cave wall is a huge underground lake that is nearly 100 meters wide. Occasionally, a wonderful glow will appear in the lake water. It may be that there are luminescent microorganisms living here.

Leviathan stretched out his tentacles and created something like a transparent cover to put on Susumi ’s face. Lin called it a "filter". At the bottom of it was a set of small organs that could filter the water. The air breathed Susumi.

"Gah? What's this?" Susumi fiddled with the hood on her head very curiously.

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

As Lin said, the filter swelled instantly after inhaling the air, and Leviathan also entered the water.

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

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

There are also many fishes here, some small fish swimming around Leviathan, Susumi is constantly trying to catch them on Leviathan's back, I don't know if these fish swim in from outside, Brought in by other creatures.

If you are swimming in ... There may be some passages to the outside.

Under the lake bottom, Leviathan has seen many caves. They are of different sizes and are also covered with crystals. Some fish are hiding inside. Most of these fish have no crystals on their bodies. There should be a cave that can lead to rivers and other places outside ...

……that is……

Lin suddenly found something in front, Leviathan immediately turned off the light, and the surroundings instantly fell into darkness. At this time, in the lake water, a lot of fluorescence was shown. They floated in the water, and now Lin can see It is concluded that they are a tiny creature.

And about ten meters in front of Leviathan, there is a place where fluorescence gathers, that is not a tiny creature, but a nearly two meters long ... arthropods?

This arthropod radiates a whole body, and it looks like a scorpion. Its front limbs are slender, and the bottom articulation is very thick. It looks like ... legs?Does it move with both legs?

This creature lay on the crystal at the bottom of the lake, with eight eyes on its head, all closed, as if lying on the bottom of the lake and sleeping.

Does this arthropod actually have an eyelid-like structure that can close the eyes?This is the first time I saw it, or is it not an arthropod, but a spine creature with bones like ribs centipedes growing out?

But this creature has scorpion pliers and hook tails, it really looks like a scorpion ...

As Leviathan approached slowly, the creature suddenly opened its eyes, and when it saw Leviathan's huge body with its own fluorescence, it was startled!It panicked and fled away from Leviathan.

This creature mainly swims by swinging its arthropods. It looks very clumsy. Leviathan can easily catch up with it. This may be a terrestrial creature. I do n’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 around and drilled into a cave at the bottom of the lake ...

This cave is too narrow for Leviathan to enter. Lynn watched the fluorescent light slowly go away in the cave. This seems to be a long passage ...

"Go in, escape!" Susumi went to the cave and looked inside. She seemed to want to catch up. Her body completely went in. Lin suddenly thought of a way and then said to Susumi: "Go in, track the target, don't disturb the target,"

With that said, Leviathan had two eyeballs attached to Susumi's hood, which looked like a hat with long eyes.

Speaking of which, "hat" refers to something worn on the head?This word feels strange ...

"Ga ..." Susumi was puzzled, and she swung her body into the cave. There were fluorescent creatures in the cave, allowing Susumi to see the surrounding environment ...

The skill of the Emerald Dragon swimming is quite good, at least faster than the creature, the fluorescence of the creature quickly appeared in front of Lynn ’s eyes, Susumi kept the distance and followed it, without being discovered Swim slowly.

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

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

The lake is small, and the creatures swam to the shore and climbed up. Susumi also raised his head to observe the water ...

At the moment Susumi came out of the water, Lin saw at first sight a whole lot ... the skeletons of creatures.

The creature walked on top of the pile of bones. It was moved by two pairs of arthropods in the lower body, while the upper body stood up and moved, but it made Lin see the strange environment and creatures here.

This is indeed a biological population, but some are different ...