"No, it's more than that, you kid can't lie to me, right?" Professor Zhao was a little confused, there were tens of thousands of dragonflies in front of him According to Liu Junhao's words, the dragonflies are estimated to be seven, eight or hundreds of thousands, which is impossible.

"Hehe, old man, you are the god of the small temple, and you have never seen a big incense. Let me tell you, you must not have noticed before, as long as there are a few consecutive rains in the summer. This dragonfly is like a meeting, it is everywhere. If you don't believe me, I'll show you the evidence later. Liu Junhao turned around and walked towards the inside of the house, he was familiar with this kind of dragonfly gathering, which has been rare in recent years. A few years ago, the dragonfly was called a lot, and the black pressure covered the sky and the sun, but this phenomenon generally caused other birds to rush to eat.

Within two minutes, Liu Junhao took out a thick book from the room and handed it to Professor Zhao.

"Xiangzhi, is there a record on this?" Old Man Zhao asked suspiciously. This hometown was sent by Zhao Guangming, and he left in too much hurry that day and forgot to bring it back.

"Well, if you see it for yourself, that scene is spectacular, and I can't imagine it without experiencing it myself." Liu Junhao followed up and explained.

Professor Zhao followed his instructions and turned directly to the page of the anecdote, and the record on it was very clear. In mid-July 1958, heavy rain fell in Daqingshan, and after the rainstorm, it cleared. In the wheat field, vegetable garden and thorn tree at the dry pond of the three trees, there are unprecedentedly rare large clusters of dragonflies, numbering more than 100,000. For several days, dragonflies flew in from all directions every evening, covering the sky and the sun. Dragonflies attract countless birds to prey, and there are about 50 birds standing on each tree on the branches and wheat straw stacks within a radius of one kilometer, standing densely. According to several elderly people at the time, this situation should be a precursor to the rising water. Within half a month, the Baitiao River really rose, and the water was fierce, causing great property losses to the villagers in several nearby villages.

"Really, dragonflies can predict disasters, isn't that the same as that earthquake precursor?" Just now they were talking quite loudly, and two tourists also came over to check.

"What does Professor Zhao think?" Liu Junhao sold a pass.

"It's the first time I've heard of ...... Some can't be sure," Old Man Zhao replied hesitantly. Naturally, the things recorded in the township chronicles cannot be faked, which is why Huo Jun decided to increase the price immediately after reading the description of the golden jade bee queen pupae last time. Besides, the scene in front of me is very similar to the record in the village chronicles, and the dragonflies have increased sharply after heavy rain. At this moment, the surrounding trees have become lively, and many birds that prey on insects have begun to gather here.

"If the water rises, can you stop the embankment of Liujiagou, it seems that it has never been repaired, right?" One of the tourists completely believed the description in the village chronicles, and was already thinking about how to retreat. After all, not long after the earthquake, people's nerves were still tense, and the slightest wind and grass stirred, immediately like frightened birds.

"Don't worry, if the water really rises, you can move to the mountain. Besides, didn't I just say that I have encountered this kind of dragonfly situation alone more than a dozen times, is it possible that the water rises every time? Let's use our brains, in fact, the reason is very simple, it is the biological food chain. Liu Junhao hurriedly pulled the topic back, he was really afraid that people would spread the rumors of rising water more and more with false rumors.

"The food chain? Dragonflies eat mosquitoes...... Long-term rainy weather causes mosquitoes and flies to breed, followed by more dragonflies, and dragonflies attract birds to prey, right? "In the end, it was Professor Zhao, who was just indulging in the dragonfly-studded spectacle before, but now after a little thought, he has connected the whole thing.

"That's right," Liu Junhao snapped his fingers, and then explained, "mosquitoes and flies like to lay eggs in places rich in humus, and the firewood and grass on the side of the wheat field will naturally become moldy and deteriorate after being drenched in heavy rain for a few days, providing a good place for mosquitoes and flies to lay eggs." There is also this forest, where the yellow artemisia grass is very thick, and mosquitoes like to hide in it. ”

"I see," the tourist suddenly realized. There are some things that you don't know the truth and think are extremely mysterious before, but when you understand the reason, you suddenly feel commonplace. Taking the scene in front of you as an example, the heavy rain that lasted for nearly a week has caused a sudden increase in mosquitoes, and such a good foraging place naturally attracts dragonflies, followed by birds to hunt dragonflies. One ring after another, forming a simple food chain.

As if to verify Liu Junhao's words, when it was almost dark, the mosquitoes around him suddenly increased. All the big grass mosquitoes, flying to the ears and buzzing, like small bombers. Liu Junhao was sitting in the courtyard to enjoy the coolness, but after a while, he was bitten on his legs with a few big bags, so he had no choice but to pour some flower water and apply it to his body. But even that doesn't stop the mosquitoes.

"Why are there so many mosquitoes today? Husband, you must buy a few boxes of mosquito coils on the street tomorrow. Zhang Qian was originally sitting in the house playing on the computer, but after a while, she couldn't hold on, and hurriedly ran to the courtyard with a pu fan to complain.

The mosquito was too hateful, and wrung a few big bags on his wife's fair skin, and Liu Junhao was quite distressed to help her apply a lot of toilet water. Not to mention that people can't stand the bites, the animals in the yard are not comfortable, the red rabbit can't stop spinning in the stable, and the flower cat doesn't care about the cool water at night, and directly shrinks its body in the pool, only exposing its head to breathe.

The monkey had no choice but to follow the owner's example and smear the flower water on his body. The flower water smelled fragrant, and Goku seemed to enjoy the smell. In less than five minutes, a large bottle of toilet water was almost half ruined by this guy.

Liu Junhao saw that the situation was not good, and hurriedly snatched it from its hands.

"Mosquito coils are also blind, and they only work if the doors and windows are closed. But in that case, the mosquitoes have not been smoked to death, and the person will faint first. Professor Zhao's deeply touched voice came from outside the door, his house is no better than Liu Junhao's here, and there are many mosquitoes in the house, and people can't get in. It was hot at night, and the two of them had just eaten most of the watermelon, and now they are not hungry, so they simply come over to chat and enjoy the coolness.

"Don't worry about us, look at the savior overhead." When Liu Junhao saw the bats flying in the sky, his heart was suddenly happy. Look in that direction, it should be flying out of the backyard. One, two, soon reached hundreds.

It's really good and good, Zhang Qian found a bat nest in the backyard a few years ago, Liu Junhao wanted to drive these guys away, but then he thought about human friends, so he let them stay, and now it's time for the bat to repay the favor.

"It's a bat, it's the nemesis of mosquitoes." Professor Zhao also had a smile on his face, there were bats out of the horse, and it was estimated that the mosquitoes in the lower courtyard would be caught. Not long ago, he read information that a 20-gram insectivorous bat can eat 1 gram of insects a year, most of which are mosquitoes, and can prey on 3,000 to 10,000 insects in a night, which is of great benefit to human beings.

The four of them stared expectantly, hoping to wait for the bats to catch the mosquitoes. But half an hour passed, and the mosquitoes in the yard did not seem to decrease, but were pulling more and more. Now Goku can't help it at all, constantly jumping up and down on the ground.

"Husband, it seems that bats don't work?" Zhang Qian asked in wonder, after a while, she was bitten three more big bags on her arm.

"Indeed," Liu Junhao was also confused.

"I know," Professor Zhao slapped his thigh and shouted, "Bats generally eat mosquitoes in the sky, and mosquitoes like this kind of grass fly close to the ground, and bats can't eat them." "It's not that bats can't fly close to the ground, it's that their flight advantage is at high altitude, so they spend most of their time hunting at high altitudes, and only reduce their altitude when food is scarce. Today is a clear exception, and there is no shortage of food in the air.

"Yes, catch it with a stone chicken" The situation was pressing, and being bitten by mosquitoes was terrible, Liu Junhao's brain spun rapidly, and then he came up with another trick. Stone chickens can also be regarded as mosquito catchers, and there are nearly 10,000 in the backyard, and they have been catching and eating them these days. Liu Junhao implements a policy of eating and supplementing, and constantly catches the stone chickens in the stone lock and raises them in the backyard, so the number of them has not decreased.

Wait a minute, catch thirty or forty and scatter them in the yard, and it is estimated that it will not take half an hour to wipe out the big grass mosquitoes.

"Now go to the backyard to catch it, and I'll go too." Zhang Qian was interested, instead of sitting in the courtyard and being bitten, it was better to catch a stone chicken.

Professor Zhao and his family also wanted to help in the backyard, so the four of them were busy with hand-held lanterns and nets.

The cool breeze in the backyard, the sound of frogs, and not a single mosquito made the suffering few people feel comfortable.

Stone pheasants are particularly easy to catch at night, as long as they hear the sound and shine with a portable lamp, they immediately stand still by the ditch and let others catch them. Liu Junhao originally wanted his wife to help catch it by himself with the portable lantern, but he didn't know that Zhang Qian had to do it himself.

My wife's skills are really not very good, and she sees the stone chicken squatting there, but she either blocks the light with her body when she moves, or she doesn't run away after grabbing the stone chicken, in short, it is very good to catch five out of ten when she encounters it. Fortunately, there are a lot of stone chickens in the backyard, and she has caught nearly twenty of them in ten minutes.

As soon as the "Wangwang" was catching him, the little skin in the front yard suddenly screamed, and then the black panther also screamed.

"There is a situation" heard that they were in a hurry, and several people didn't care about continuing to catch stone chickens, and hurriedly walked out of the backyard with a lantern.

There was nothing in the courtyard, only Xiaopi and his family gathered around the peach tree and shouted. Seeing the master come out, Xiaopi screamed twice and stopped immediately.

"Could it be that the grass civet is here again?" Liu Junhao circled around the peach tree, but finally found nothing. But the otter heard the footsteps, and screamed with joy out of the cave, and ran to him and spun around.