In Xu Yunshu's memory, this terrifying rat gathered in groups.

They are a counterexample of the higher the rank of the predator, the larger the size, and every little mouse the size of a palm is a second-order predator, and he has suffered a lot from them.

The black-backed short-nosed rat is a very peculiar second-order predator, each of which is the weakest of the second-order predators.

Even when Xu Yunshu had just advanced to the second level, it would be no problem to kill four or five during the confrontation.

The key lies in their population.

Dozens, hundreds, thousands, fearless of death, crazy group attack, the survival strategy of this group of rats is to attack them in groups, and they don't care about casualties at all.

Another advantage of them is that they don't even have three taels of meat, which means that even if a third-level predator has a whim, they come to hunt this group of rats, and it takes a lot of physical strength to catch thirty or fifty of them, and they will be stunned to find that they are working in vain, and the consumption is not proportional to the gain.

If you have that kind of idle time, it is better to catch other second-level predators, if you just want to fill your stomach, the six-eyed rabbit is all over the forest.

With these two rules of survival, the black-backed short-nosed rat can survive well in the lower reaches of the valley.

Xu Yunshu didn't want to disturb the peaceful life of this group of rats, he was now a third-level predator, the rat colony was not a big threat to him, and he could gain something if he spent his efforts, but he felt that hunting such a small thing was really not interesting.

Just as he was about to leave, Xu Yunshu inadvertently glanced in the direction of the source of the smell, but he couldn't help but stand still.

He found that the shape of the rat's nest was particularly pleasing to the eye.

It was a tall mound of soil that had been upturned and had been consolidated over the years to form a sturdy hill of small caverns, and the black-backed all-nosed rats rested in the narrow passages leading through the hills.

At the bottom of the hill there is a large deep pit, which leads diagonally upwards to the interior of the hill.

Xu Yunshu's eyes were good, and he saw a red and white elk carcass parked in the deep pit, which was gnawed to only half of it, revealing Sensen's white bones, and the other half was a blur of flesh and blood.

He immediately determined that the pit was a storage den for the rats, to preserve the food they had hunted.

The crux of the matter is that this kind of half-hidden hole can be used to shelter from heavy rains.

Xu Yunshu's heart was moved.

Although the valley was a familiar hunting ground, if he was alone, he still couldn't compete with the saber-toothed tiger gang.

If he encounters a gang scout in the vicinity, he will only have to use the last means of escape.

Xu Yunshu felt that he had not yet reached the point of exhaustion.

What's more, this place is still far from returning to the valley, and in the plains downstream of this stream, it is difficult to find a place to hide from the rain, even if he is a third-level predator, it is a bad thing to be exposed to the rain for a long time.

The rats still have a grudge against him.

The superposition of various factors made Xu Yunshu quickly make a decision.

He wants the dove to occupy the magpie's nest.

To be exact, it is to use the storage hole of the black-backed short-nosed rat to temporarily hide from the rainstorm and add food to yourself by the way.

However, Xu Yunshu still encountered a headache for all third-level predators, this group of black-backed short-nosed rats is huge, if you don't care about rushing forward, you will only fall into the sea of rats, even if they are wiped out in the end, the loss is far greater than the harvest.

We have to think of a safe enough way to solve this problem.

Xu Yunshu crouched under a dense ancient tree, avoiding the rain as much as possible, squinting at the rat's nest, his brain spinning rapidly.

What can be done to eat meat without being beaten?

He carefully observed the movements of the rats, who were masters of burrowing, burrowing through the small passages of the hills, constantly carrying the flesh and blood of their prey, and the digestive power of these small creatures was amazing, and they could instantly absorb more than a hundred times their body weight.

But that's not the norm.

Turning on an astonishing amount of food seems to be their potential talent, and they only use it when they are fighting enemies for food.

Normally, they drive their prey to the vicinity of the rat's nest and act in groups, biting the prey alive, dragging it to a storage nest, and then ingesting the food in batches.

Each wave of black-backed allied rats ingested flesh and blood would emerge from the massive storage hole and twitch each other's noses with their new companions, sniffing each other up and down, and then passing by.

This detail caught Xu Yunshu's attention.

He opened his eyes wide, strengthened his eyesight, looked closely, and found that this is what every short-nosed mouse does.

That is, it is their beastly nature.

The rats use each other's scents to determine if they belong to their own species!

Xu Yunshu had a flash of inspiration.

His potential is adapted to evolution, and he can completely change the type of sweat glands, or simulate the creation of skin secretions from black-backed short-nosed rats, so that the rats can mistake him for his own, so as to achieve the purpose of sneaking in.

The only problem is that Xu Yunshu doesn't know if this black-backed short-nosed rat will distinguish each other by its body size in addition to its smell.

If it were the latter, his disguise would be completely ineffective.

Xu Yunshu's potential power had not yet evolved to the point where he could change the size of his body at will.

He thought about it for a moment and decided it was totally worth trying.

In the real world, there are also examples of cuckoos borrowing nests to lay eggs, and the miserable mother of the lark raises young birds several times larger than herself, and is still diligent and hardworking.

Could this black-backed all-snout rat in the Dream Forest fall into the same natural trap?

Xu Yunshu turned on the sense of smell enhancement, tried to capture and analyze the body odor characteristics of black-backed short-nosed rats, and tried to adjust the composition of skin secretions, and strive to accurately simulate them.

It took him a lot of energy, and after ten minutes of trying, he was finally sure he had succeeded.

Smelling the smell on his body now, Xu Yunshu nodded with satisfaction, and the next step was to really take the first step.

He can't move too much, which will frighten the children.

Slowly, little by little, step by step, Xu Yunshu was extremely cautious every time he moved, he stared at the reaction of the rat swarm in the hill, as long as the group of rats moved at all, he would give up the plan.

When it was only one meter away from the rat's nest, a black-backed short-nosed rat suddenly came out of the hole, and it found the huge Xu Yunshu, the not very developed head turned suspiciously, and the short nasal cavity repeatedly sniffed the smell, trying to understand the big guy in front of him.

Xu Yunshu didn't dare to breathe, he just stood in place, ready to run away at any time.

It's impossible to fight, and it's a waste of time to fight these little things.

The mouse repeatedly sniffed Xu Yunshu's body odor, still confused, and it crawled out of the nest again, ran to Xu Yunshu's side and continued to smell, until Xu Yunshu was a little impatient, the black-backed short-nosed mouse finally stopped moving, rubbed Xu Yunshu's toes with its body, and then went back to the nest.

Xu Yunshu was overjoyed in his heart, it seemed that it was done!