The harm caused by uncontrolled biotechnology far exceeds natural disasters and species invasion.

Especially when the artificially induced variation can exert its influence through the conduction of the food chain, the whole ecosystem is forcibly pulled into a state of extreme instability.

Of course, with the passage of time, natural selection and the jungle law of survival of the fittest will come into play, and the many mutant species generated by the Big Bang will re-form a new balance and crowd out the space for new creatures to survive.

By that time, the drastic changes in the ecosystem will also level off, but how long it will take to adjust is unknown. Mizuki is not a professional biologist, and his level of scientific research is just that, but he has accomplished many achievements through the knowledge far beyond the ninja world and the convenience of Chakra.

A few years ago, it wasn't that serious, and it was enough to let some acquaintances clean up when they were free, and there was not much commotion, but now, it seems to be a little more than expected.

Even if Mizuki made the shot himself, he could not guarantee that there would be no fish that slipped through the net. For things like mosquitoes, mice, and bed bugs, it would not be difficult to eradicate them temporarily, and it would be almost impossible to completely eradicate them.

Up to now, Shuimu does not know how far the influence of these things has spread. He can only see one outbreak, so he suppresses one, and does not seek complete elimination. He can only hope to buy time and let the natural Wealth, the passing of time to adjust.

Fortunately, there are creatures like ninjas in the ninja world, several mutant creatures, and they can't make much waves.

...

The adventure of Yuhuo and the three little girls continued. At noon, the four people and one bear found a shady place to have lunch, and then took a break before continuing to work.

In the autumn afternoon, it was also a little hot. Miyuki, Yueguang Nagi and Futaba Tsumugi took off their shoes, rolled up their trousers, chopped up the clumps of kudzu in the sand by the river, rolled them up, piled them together, and waited. Sister Yuhuo handles it.

After cleaning up the nearby lighthouse jellyfish, there is no need to be afraid of being stung and injured, and the little guys will play in the water from time to time when they are busy.

"It's nice to be young."

The fishing fire that just came out of the river came over with a strange big fish with two strange long whiskers growing on the top of the fish's head, fins as sharp as blades on both sides of the fish's body, and several long fins on its back. Bone spurs, the most terrifying thing is that in the open fish mouth, a shadowy human face can be seen vaguely.

"Wow, what is this?"

The fishing fire threw the big fish ashore, and the huge monster did not move, and it seemed to be dead.

The three little girls stepped forward boldly, and Miyuki even slashed twice with the long sword, making a crisp sound of gold and iron hitting.

"It's so hard, you can't hurt it without a little effort."

In fact, if it weren't for the long sword carefully crafted by Mizuki, the sharpness of the Kusanagi sword could not cut through the defenses outside.

"This fish was not this big before, only the size of a fist, hiding in the mud by the shallow water, ambush hunting for small fish and shrimp for a living, the bone spurs on its back are poisonous, many fishermen living by the river and children playing in the water accidentally step on it When it is injured, the toxin will cause severe pain, and it will take ten days and a half to heal."

"Then why did it grow so big?"

Fisherman shook his head,

"Looking at its scales, it should only have a lifespan of two years. It is a young fish..."

Interested, Futaba Tsumugi used Kunwu to raise the fish's mouth, and looked at the fat tongue that was a bit outrageous and the tongue lines that looked like a human face.

"It's really scary. If you see it at night, it will definitely be regarded as a fish monster."

"Then we should find the righteous master? Should we cut something off as evidence?"

Yueguang Nagi was also a little happy. After working for a long time, she finally got something.

Fishing fire nodded,

"This kind of fish is unpalatable and useless. You can burn it up after a while. You can cut off the bone spurs and fins on your back and take them back to play slowly."

"Then...we're welcome."

The whole fish is nearly twice as long as an adult. The side fins are about the size of a fan, and the bone spurs on the back are like magnified ice hoes. The three little girls took a lot of effort to cut them all off and wash them clean. The silver-white fins And the gray-black bone spurs exude a metallic brilliance in the sun.

"Let's be here today, you should go back too."

"Yeah, after walking so far, it's almost too late for dinner."

"Thank you, Sister Yuhuo, otherwise I still can't find the fish monster."

"However, Sister Yuhuo's ninjutsu is so powerful, such a monster can be captured easily, even under water."

"My hometown is in the land of the sea. It is surrounded by the sea and the water is normal. That's all I can do."

"Sister Yuhuo must have often played with her friends in the sea when she was a child, so she is so powerful?"

"What's wrong, I'm also very envious of you."

When I was very young, I was used as an experimental subject, and all my companions died. Later, I was excluded as a monster, and ignorant children were also driven by stones. The memories of that time are all bitter.

Fortunately, things are going well now. Although I have suffered a bit, I am no longer regarded as a monster.

"Then let's go, Sister Yuhuo, goodbye."

The three little guys collected the spoils and went home happily.

"Well, good to go."

Looking at the departing back, Yuhuo slowly waved goodbye.

It was not until the three little girls were completely invisible that a figure suddenly appeared.

"You are really patient and play with the children."

Yuhuo turned around and chuckled lightly:

"It doesn't matter, I won't delay it anyway. You've finished it over there? Yukimura..."

"It's over long ago."

After several years of experience, Yukimura's face became less childish and more cheerful.

Unlike the stern Sasuke Uchiha, there was a smile on his slightly sunny face. The short hair of the little finger was a little loose but not messy. He held a peaked cap in his right hand and a long-handled sickle-shaped weapon against his shoulder in his left hand. Strong sleeves.

If it weren't for his elegant and calm demeanor that could not be concealed, others would only regard him as a child of a nearby farmhouse who came out to play.

Yukimura put on the cap, and with a wave of his right hand, a flame enveloped the fish monster's body, and after a while, it was burned to ashes.

"It's done, just clean up and go back. It's really exhausting, but it's also quite interesting. I didn't expect to have something to do soon after coming back, so it won't be boring."

"You said you have to watch the world of Ninja, so many years, haven't you seen enough?"

"It's almost there. Next time, I'll ask Shuimu if there are any good places."

"How long are you going to come back this time?"

"Some things have been delayed for a long time, and it's time to solve them..."

That guy with the same appearance, I really look forward to his expression when he sees him, it should be interesting...