Chu Xiu exuded a strong smell of blood in the process of eating crocodiles, and he saw several pairs of eyes hidden in the river, staring at him coldly, and he resolutely left the river without looking back.

In a small cave, there are quite a few stalactites on the roof of the cave, and there is a small monitor lizard in it.

After being injured, Chu Xiu came to the cave, and evolution needed a safe and secret place.

By this time, Chu Xiu's body was no longer in pain, and he asked, "System, how is my injury now?" ”

"After the host ate the crocodile, the injury was relieved and is now out of danger, and the injury is 30 percent repaired."

"Looks like eating can heal the injury." This is good news for Chu Xiu.

The reason he came to this cave was to evolve.

This evolution takes twelve hours, which is too long than the ten minutes of the first evolution, and there are too many unknowns in between

Chu Xiu looked at the pitch-black cave, ensuring that there were no other beasts, and silently thought in his heart: "Start evolving." ”

"Ding Dong, the evolution has officially begun, and it will take 12 hours for the second-order alien beast to evolve into a third-order alien beast."

Chu Xiu's head was buzzing, and his body began to change at a speed that could be seen.

The skin began to wrinkle slowly, and the body gradually became larger.

The friction between the bones makes a "grunt," sound,

Chu Xiu also felt that his breath of life was gradually becoming stronger.

After twelve hours have passed......

"Dingdong, congratulations on the successful evolution of the host."

A pale white fluorescent screen with a faint white light appeared in Chu Xiu's mind.

The 3D stereoscopic image above is him.

Chu Xiu's current body length is 1.5 meters, and his body size is about the same as that of a crocodile, but his combat power is much stronger than that of ordinary crocodiles.

With blue-brown skin and a fierce face, it looks a bit like a dragon, and the momentum is fierce.

"It's finally a bit of a beast." Chu Xiu burst into tears when he saw his evolved appearance.

"Host: Chu Xiu.

Species: Cold-blooded reptiles

Rank: Rank 3 Alien Beast

Abilities: Rotten fangs, deep sea swimming.

Age: 1

Lifespan: 50 years.

Evolving to a Tier 4 Alien Beast requires 3,000 genes.

Looking at the information on the light screen, Chu Xiu was a little surprised, it actually took 3,000 genes to evolve again, and the difficulty directly increased several times, and the difficulty increased after each evolution.

"Does it take 30,000 genes for a fourth-order alien beast to upgrade to a fifth-order alien beast?" Chu Xiu asked.

"Yes, the genes needed for each evolution are multiplied tenfold."

"For example, it takes 300 toxin genes for a second-order toxin to evolve to a third-order toxin, 3,000 genes for a third-order toxin to evolve to a fourth-order toxin, and 30,000 genes for a fourth-order alien beast to upgrade to a fifth-order alien beast."

"Although the difficulty of evolution is gradually increasing, the effect brought by each evolution is also huge, and when the host evolves to the tenth-order alien beast, it can easily destroy a planet."

“........。” Chu Xiu was a little speechless, "Why should I destroy the planet." ”

"It's just an analogy, the host is still too weak now, and can only level up in these low-level places, and I almost died a few times in the past two days, desperately improving my strength is the last word, and when the host sees a powerful creature, try to eat the other party, so that I can improve my strength as soon as possible."

The system kept talking, and Chu Xiu didn't seem to care, but he kept these words in his heart and asked, "What's the use of the skill of swimming in the deep sea?" ”

"It allows the host to live in the deep sea and master the nature of water."

This skill is a bit of a chicken rib, and he can't use it for the time being.

Chu Xiu touched his nose, he stuck out his tongue, and his long tongue swayed in the air.

He felt the fresh smell of blood in the air and the beasts in the cave.

The visibility in the cave was extremely low, and if he encountered a beast here, Chu Xiu would be in an extremely disadvantageous position.

"Squeak."

There was a sound in the depths of the cave, and a foreign object quickly rushed towards Chu Xiu.

Chu Xiu raised his paws and grabbed them directly and quickly, and a mouse pressed him to the ground.

The body of this mouse is 20 centimeters in size, which is considered a giant rat, and its whole body is full of fat.

From time to time in the cave, there was a cry of "squeak," a bit of a miserable cry.

Chu Xiu found that the mouse he was holding down had a large amount of blood on its back, and the blood was still slimy, and it seemed to be the blood that had just flowed out.

The rat had no wounds on its body, indicating that it was blood from another living organism.

The giant rat struggled desperately on Chu Xiu's claws, he had just evolved to a third-order alien beast, and his stomach was already empty.

Chu Xiu opened his big mouth and directly ended the life of the mouse.

At this time, the smell of blood and the screams of rats came from the depths of the cave.

Chu Xiu's heart was a little hesitant, he had just upgraded to the third order, his heart was a little swollen, and when he encountered an unknown beast, he wanted to eat the other party, after all, it was all a genetic number.

After being silent for a while, Chu Xiu thought about it again and again, the danger of the existence of unknown beasts was too high, and he still chose to leave the cave.

A pair of bright eyes appeared in the depths of the cave, and these eyes seemed to teleport, quickly moving in front of Chu Xiu.

At the same time, a pair of bloody claws appeared in front of Chu Xiu,

The sharp claws grabbed Chu Xiu directly, cutting Chu Xiu's shoulder, and a wound opened the flesh, splashing out a large amount of blood.

This beast almost pulled Chu Xiu's whole person into the air, this is a flying beast, and in the dark cave, it can move freely.

Chu Xiu gasped, the wound brought severe pain, he knew that he had to leave the cave, it was extremely unfavorable for him here.

The flying beast attacked again, still falling from the sky, and this time Chu Xiu saw the true face of the beast clearly.

An ugly face, a huge face, similar to a mouse, and a pair of large wings, which is a giant bat.

The body is about the size of a two- or three-year-old child, with a pair of huge sharp claws, the pointed claws are terrifying, and there is no doubt that these claws can pierce your body.

The claw scratched at Chu Xiu's wound again.

"Damn!."

Chu Xiu rolled and crawled, and only then did he dodge the attack of the giant bat in embarrassment.

But the giant bat didn't let him go in the slightest, and in the jungle it was the jungle.

Facing a strong enemy in the air, Chu Xiu had a feeling that he couldn't use his strength when he hit the cotton.

Giant bats aren't very powerful, but the cave is home to giant bats.

Cramped and pitch black, only bats can roam freely in these places.

The giant bats attacked Chu Xiu back and forth, and he who had been playing yin with him just didn't face it.

Chu Xiu didn't have a chance to leave the cave, so he could only circle with the giant bat in the cave.

A pair of bright eyes appeared in front of Chu Xiu again, and this time he didn't dodge.

The giant bat's claws hooked directly into Chu Xiu's body, it was flapping its wings desperately, and its strength couldn't pull Chu Xiu at all.

But its claws were also embedded in Chu Xiu's shoulders, and they couldn't be pulled out at all.

The giant bat wanted to rip off a piece of Chu Xiu's flesh to break free from Chu Xiu's control, but with the strength of the giant bat, it couldn't tear off Chu Xiu's flesh at all.

The giant bat's claws could only be embedded in Chu Xiu's shoulder, and it also left Chu Xiu in place.