Global Catastrophe: I Became the World Tree

Ye Feng knew very well that these animals mutated and became larger in size, which was only one of the evolutionary directions.

Just like if he adds points, he has three options.

At the time of breakthrough, the roots of the tree alone have four directions of strengthening.

And the same must be true for these animals.

But the vast majority of animals are not intelligent. They only follow their instincts and choose to become more powerful.

In the animal kingdom, larger body size naturally means greater strength.

The mutated big yellow dog in front of you might have a different idea.

The direction of its "strengthening" may not be towards enlargement, but rather towards speed.

Thinking of this, Ye Feng immediately pulled out the second and third tree roots and wrapped them around the big yellow dog. He wanted to know where the opponent's limit was.

The big yellow dog can indeed deal with it easily at the beginning, but with each additional tree root, the difficulty for it to dodge will double.

When Ye Feng pulled out the fifth tree root, it finally became anxious, or in other words, it stopped blindly dodging and started to fight back.

After the big yellow dog once again dodged the attack of the tree roots, it pounced forward, its mouth opened wide, and its sharp fangs began to bite at the tree roots.

You must know that Ye Feng has reached the second level, and he has strengthened the toughness of his tree roots twice. Now his tree roots are as hard as an ordinary iron rod.

Logically speaking, it would be difficult for a first-level mutated animal to hurt him.

But as the big yellow dog bit it down, its sharp fangs pierced into the root of the tree in an instant.

And with the continuous biting, the roots of the tree made a creaking sound, and finally they were actually bitten off.

Ye Feng didn't care at all about the broken section of the tree root. Instead, he was even more surprised by the bite force of the big yellow dog.

"At the first level, he was able to break through the second level defense. It's amazing." Ye Feng couldn't help but praise.

"I just don't know how the defense is?" When Ye Feng spoke, five tree roots had already wrapped around the big yellow dog.

Of course, he didn't directly use all his strength. First, he tightened one tree root hard, and then the second one...

As the two vertical roots exerted force at the same time, and when the force reached 400 kilograms, he suddenly heard a slight clicking sound.

It was the sound of bones being broken, and it was also accompanied by the pitiful whimpering sound of the big yellow dog.

"Compared to mutant animals of the same size, the defense power is a bit inferior. But with such speed and attack power, it is already very good and deserves to be cultivated."

After the test, Ye Feng nodded with satisfaction and at the same time input spiritual energy to heal the opponent.

Next, he started adding points to himself.

Silently waiting for time to pass.

When the time came to 9 o'clock in the evening, King Cobra began to break through towards the mid-second level.

Ye Feng silently calculated that the opponent needed a full 200 points of spiritual energy to break through a small realm at the second level.

"Compared with the first level, the consumption is indeed much greater, but fortunately I can afford it."

Ye Feng looked at the King Cobra. Its body length had grown from 10 meters to 12 meters, and it had become thicker again. He felt that such a sacrifice was quite cost-effective.

Time continued to pass, and soon it was 12 o'clock in the evening.

At this time, Big Yellow Dog also broke through again, reaching the late stage of the first level.

The speed increased again, now surpassing the birds flying in the sky.

But what puzzled him was that the mutated buffalo, for which he had high hopes, made no movement.

"It shouldn't be. Calculating the time, we should start to break through." Ye Feng frowned and continued to wait.

And this time, another hour passed.

"What's going on? Not enough spiritual energy in the body?" Ye Feng immediately stretched out a tree root and wrapped it around the opponent.

But when he injected spiritual energy into the mutant buffalo, he found that after injecting 1.5 points of spiritual energy, it reached its limit.

"Is this... stuck at the bottleneck???" At this time, Ye Feng's head was really filled with questions.

At this time, he still didn't understand that his previous guess was wrong.

He glanced at sparrows, mice, bats, and black crows.

He said to himself: "So, it is not because of their small size that they are stuck at the bottleneck of breakthrough, but it is a normal thing?"

At this time, his eyes were focused on the King Cobra coiled under the tree, "And the King Cobra, which can break through directly, is a gift?"

Thoughts were swirling in his mind, and finally he shook his head and stopped thinking about it.

It's already 1 o'clock in the morning, I can't wait any longer, I have to act as soon as possible.

Soon Ye Feng gave the order to set off.

There was a rumbling sound in the originally silent woods, which was mainly caused by the running of the mutated buffalo.

Although it has not broken through to the second level, its current size has exceeded that of an average adult elephant.

In addition, the King Cobra is not suitable for traveling long distances, and it hovers directly on the back of the mutated buffalo. The weight of the two behemoths is added together, and running is simply shaking the earth for other animals.

As for the rest of the mutated animals, there was no movement. The big yellow dog ran lightly and flexibly, while the mutated mouse was also carried on its back.

The rest of the animals can fly and make no sound at all.

At this time, Ye Feng has possessed a sparrow and is conducting remote command.

It was okay for the other creatures, but the mutated buffalo was too big. Even at night, he didn't dare to let it run swaggeringly on the road. He could only let him walk through the dense forest as much as possible to prevent being caught by the satellite above his head. See.

But even under such circumstances, these mutated animals were extremely fast on their way, reaching the distance of more than 20 kilometers in half an hour.

When they were about to arrive at the outskirts of Yangcheng City, under Ye Feng's command, they separated instantly.

The mutated buffalo simply stayed outside, waiting for a response.

The king cobra, the mouse, and one of the sparrows formed a team. They found a sewer, got in, and headed underground.

As for the other sparrow, together with the bats and black crows, they formed an aerial formation. They mainly provide vision and direction in the air.

He could feel the relative distance between these animals and guide the way forward for the three creatures in the sewer.

Otherwise, the king cobra will be blinded by how it will go after getting into the sewer.

In addition, there is a big yellow dog on the ground, following the movement of the aerial formation in the sky, responsible for providing support.

At this time, no matter whether it was the three little birds flying in the sky or the big yellow dog running on the ground, no one would notice it in the dead of night.

On the contrary, what the team advancing in the sewer felt was a lively atmosphere.

Here, every time you advance a certain distance, you can see groups of mutant rats.

Not only mice, but also a lot of mutant flies and mutant mosquitoes.