The wolves dominated the grassland for more than a year, and a large number of humans, zombies and animals died under their mouths.

The Wolf King had killed many living people, knowing that the thin and thin things that were stabbed cannot cause harm to him. At this time, there were only two wolves left. The Wolf King was also anxious and continued to bite Liu Yu's head without fear. He vowed to kill him with one blow...

Liu Yu frowned slightly, his speed increased again, and he sent the dragon sword to the wolf king's mouth without fear.

The distance of tens of thousands of kilograms was concentrated at a few millimeters, and it instantly pierced the back of the wolf king's head.

The wolf king whose brain stem was utterly told was not dead. His mouth suddenly closed, covering Liu Yu's chest and back.

After all, the speed difference was 50%. Liu Yu, holding the knife, pressed his right arm and elbow suddenly against the wolf king's fat tongue. His left hand grabbed a dozen centimeters of fang like lightning, activated with all his strength, and directly pushed the pressing mouth to the maximum.

The wolf king who lost his brainstem and failed to succeed in the last blow no longer had the ability to fight back.

Brush brush

In one second, Liu Yu stabbed the wolf king more than fifty times in a row in the open mouth.

When he took back the dragon sword, the fifth-level evolution wolf, a large amount of blood mixed with white matter in his mouth flowed out. His whole body was trembling, and his eyes, which were always cruel and vicious, were closed.

The last wolf also dismembered the corpse under the mouths of dozens of evolution bodies, and the level 4 snow leopard next to it was no exception.

Yuri did not stop his men from eating. For a moment, thousands of zombies showed their cruel side, pieces of flesh and blood, and steaming internal organs were sent to their mouths by these zombies.

With the chirping, dozens of evolutionary animals were eaten up in a few seconds. There were more zombies and less food, and some zombies that had not been eaten. They had red eyes, snatched the bones that were almost meatless and chewed hard, and their tongues flexibly licked the blood stains on them.

He gained a lot from the arrival. Liu Yu was happy and directed the zombies to clean the battlefield. Brain crystal nuclei were immediately collected, the giant bear's largest, almost as good as the baby's head.

These are all high-level brain nuclei, and the giant bear should be of level 6. He let Yuri swallow them all and observe them carefully for a while.

Liu Yu was very disappointed. It seemed that the giant bear's brain core quality was not very good. The wolf king's was not very good, and Yuri did not show any signs of evolution.

"Forget it, it's impossible to have good luck every time."

He comforted himself for a moment, and then ran towards a certain city with his corpse.

The corpse groups of angels and others were progressing very smoothly, and the evolutionary animals they encountered were only level 3 and level 4. They were easily killed by level 5 evolutions such as angels.

The grassland is endless, and if you are not familiar with it, you can't tell the difference between the south, south, west and north. Liu Yu is crazy about the road, but fortunately there are GPS. After an hour, he approached one of the few cities in Inner Mongolia.

A steel city in the distance stands majestic on the endless grassland, and the outline is clear at a glance. The entire city is covered by a gray and white atmosphere. You can feel the dilapidated and ruined atmosphere when you are close.

If you run a horse to death by looking at the mountains, you can run a horse to death by looking at the cities on the grassland. Fortunately, the speed of the evolution body is much faster than that of the horse, let alone Liu Yu.

When he came to the city, a strange scene appeared in front of him.

Thousands of miles away from the ground, and no grass is left within hundreds of kilometers, and large holes are covered with the ground. In these holes, there will be fat mice more than one meter long and dozens of centimeters tall, emerging from them. They saw the zombie evolution groups running from afar, and they ran back into the cave.

Liu Yu was very surprised. From here, he could not see the edge. The dense holes were broken, so how many mice would it take. Just as he was thinking, a squeaking sound gathered together, very harsh.

Countless mice kept coming out of the caves, and in the blink of an eye it was covered with the ground visible to the naked eye. The number was still increasing.

A sharp cry came out, and a huge tide of rats rushed over.

Liu Yu, who has seen many corpse tides, has seen that the number of rats is no less than 100,000. However, rats are rats after all, and their size is exaggerated and cannot escape the scope of rats. If a destroyer kicks his feet, he can trample a few of them to death.

Roar

Faced with a large amount of food, the evolutionists who had already become red-eyed just now were also excited and met without fear.

Many mice jumped up in the air and rushed towards the predator who rushed to the front immediately.

Tens of thousands of sharp claws shone with cold light, and the rat was shattered. For a moment, blood and flesh flew everywhere, and the smell of smell immediately spread over the ground.

The mice are running one after another, and the zombie evolution is jealous of food.

The number of rat tides is too large and the speed is very fast. After more than ten seconds, the communities on both sides are entangled, and seven or eight rats will be surrounded by each evolution body.

There were also dozens of people around Liu Yu, but they didn't expect that these mice were very agile and killed seven or eight of them after being surrounded.

The remaining rats found a chance, and their sharp teeth of more than ten centimeters started to chew on his legs.

Say a word

The huge bite force encountered a strong obstacle, and the heads of several mice staggered. These mice were very cruel and crazy, and they activated their instincts again and started to chew.

A pit

It seemed as if the sound of a woodpecker chiseled a tree trunk, it really couldn't hurt the food at all. The mice had no choice but to find another place to vent.

However, good things cannot be returned to the same place.

Liu Yu was scared for a while, and the dragon knife in his hand flashed a few times, and then cut the fat mice into several pieces.

An evolution body on the side quickly started to copy it and vomited its belly.

Liu Yu breathed a sigh of relief. The scale of the rat tide came suddenly. Fortunately, he wore protective clothing inside, otherwise the gutter would have capsized. He pulled up his trouser legs and looked at it. The tough protective clothing only had a few white spots. After all, it was the shell of a level five tyrant. If it was bitten by a rat, he wouldn't have to come out and mess around.

The teeth of these mice are very sharp, and the destroyer is better. If the predator is not careful, he will be gnawed off a part of his limbs. What can he pay attention to when facing food zombies? In a few minutes, more than two thousand predators will become disabled.

Roar

Yuri roared, and the evolution of the clan's group's attention to flesh and blood was forcibly cut off, and he focused on killing the zombies.

In just a few minutes, more than 8,000 evolved mice were wiped out by more than 8,000 evolutions.

"If it weren't for Yuri's control, I'm afraid that all these evolutions would have been buried in the mouth of the rat."

Looking at thousands of disabled evolutions, Liu Yu sighed.

Liu Yu would not want such a disabled evolution. But he doesn't have to worry. He killed all the brain nuclei and fed them to ordinary zombies, and they could replenish the number immediately. There are also a large number of crystal nuclei to create evolvers.

Another harsh cry.

Liu Yu hurriedly looked at it and saw a tail that was more than three meters long and the thickness of a beer bottle. It shook a few times outside a large hole with a diameter of several meters and disappeared. The tail was not fully revealed. A rough estimate was that the mouse with such a tail was at least six or seven meters in body. Judging from the diameter of the hole, it must be two or three meters wide.

The remaining few mice quickly retreated and entered the hole and disappeared. The ground where there was no grass growing was no longer orange and yellow, but it was already red.

Jiji

Without the threat, the zombie evolutions started to eat wildly. This time there were 100,000 mice and hundreds of thousands of kilograms of meat, which was a gluttonous meal.

After looking at the fight just now, you will know that the evolution level of these mice will not be too high. They rely on their number and sharp teeth to cause casualties to the evolution. Liu Yu did not stop the zombies and devoured corpses that may produce brain nuclei.

These mice are also unlucky. If they are evolutionary animals, the tide of such a large scale will be small and numerous. After a group of thousands of ants, they will eat each one. Even the sixth-level giant bear just now will be invincible. Unfortunately, they are facing tens of thousands of zombie evolutions with only the key heads, and they will return in vain.

The biggest disaster in the grasslands today is mice. In modern times, their biggest natural enemies are humans. The surviving humans are difficult to protect themselves, and mice lose their natural enemies.

As an example, the female mouse has fertility after 2 months, and a litter can produce 8 to 10 mice. With sufficient food, a mouse can conceive several times a year. In this way, a female mouse can reproduce almost 200 mice in a year.

The fertility of rats is very strong. The folk saying "one male plus one female is the reproductive characteristics of rats."

One can get two hundred and five in a year, and these two hundred and tens of thousands can get tens of thousands. Tens of thousands can get millions of them in the next year. This is the beginning of one male plus one female. If it is ten pairs, the beginning of a hundred pairs. How many will it be in the end?

Liu Yu was able to calculate, but he could no longer believe it.

This is like Doudizhu. The first few bombs don’t feel pain. In the last moment, you will blow up all your chips. In more than a year, the increase in the geometric number of mice on the grassland is conceivable. If it is not eliminated, maybe you have a few nests, which is hundreds of millions or billions of dollars.

"Even if the resources are limited, the scale is not acceptable to humans. If it spreads, it will definitely be a disaster that is no less than the z virus by relying on the strength of a disabled third-level evolution in an instant."

The scream just now should definitely be the king of mice. You must find the nests of these mice and destroy them.

What Liu Yu didn't know was that these mice were also one of the reasons for grassland animals' migration, and this scale was also an effect that only occurred in recent litters.

Behind these rat holes is the city.

As we all know, zombies love fresh and flesh the most, and they will never let them go when they see them. These mice are so close to the city, what are the hundreds of thousands of zombies in the city doing?

"Could it be..." Liu Yu's heart moved and walked towards the city with his own zombies.
Chapter completed!