Xiao Yuan exclaimed: "Only three meters? That's a lot worse! ”

"Who knows, it seems that the southern insects are a little smaller than the northern insects, and more than three meters long is already a relatively large insect, generally about two meters. Pen ~ fun ~ pavilion www.biquge.info" Shen Hao said.

"Nothing bigger?" Ye Han was surprised.

"It's not nothing, let's put it this way, the water swims bigger than the ground, the ground climbs bigger than the sky, and the biggest flying insect on this side of the marrow river is less than one and a half meters long." Shen Hao said.

Xiao Yuan was speechless for a moment, not to mention the giant cockroaches that are ten or twenty meters long in the north, even the mantis giant ants can grow to more than four meters long, I heard that there are also giant centipedes more than six meters long on Bang Island, why have the giant insects in the south shrunk so much?

"Instructor Ye, the small size of the southern insect is not related to the temperature?" The new team member, who had not spoken, suddenly asked.

The new team member's name is Chi Wei, who has just been promoted from a trainee to an intern team member, and his title habit has not been changed for a while.

"It's possible." Ye Han nodded, "Yes, the theory class was not in vain." ”

How to manipulate power armor is only the main course of the dynamic academy, in addition to various theoretical courses, the giant insect is also one of the main courses in the academy.

Shen Hao blinked suspiciously: "The temperature here is high, so the giant insect is small?" ”

"You can say the same thing." Ye Han said with a smile, "Strictly speaking, it has something to do with heat dissipation. ”

"Still don't understand." Shen Hao shook his head.

Ye Han explained: "Let's put it this way, insects are relatively low-level animals, there are no heat dissipation organs such as sweat glands, the larger the size, the more heat generated by exercise, the hot weather here, if the body size is too large, the heat generated during exercise can heat the giant insect to death, so the small size of the southern insect is likely to be related to the temperature." ”

Shen Hao showed a thoughtful look: "It seems to make sense, the insects in the water don't need to dissipate heat, so they are bigger...... But aren't there giant cockroaches more than twenty meters long in the north? How does that thing dissipate heat? ”

"I don't understand that either." Ye Han shrugged, "But the giant cockroach only moves at night, probably because it is afraid of the heat." ”

"No, although there are no giant insects on this side of the Pulp River, there are large giant insects in neighboring provinces and Southeast Asia, how can this be explained?" Shen Hao asked again.

"Maybe these giant insects have evolved some kind of heat dissipation ability, in a word, those who can survive can adapt to the environment, and those who can't adapt will die." Speaking of this, Ye Han smiled, "Let's just talk casually, this kind of messy thing, let's let Beidu study it." ”

The gunshots outside the car had become very loud, Ye Han turned on the surveillance screen, checked the situation outside the car, and unexpectedly saw a machine gun tower firing, and the flying tracer bullets flew into the dark night, and he didn't know if he hit the target or not, anyway, the shooting frequency was not low.

Not only machine-gun towers were firing, but several armored vehicles were parked on the side of the road.

Ye Han asked curiously: "What does the machine gun tower use to determine the target orientation, radar?" ”

Shen Hao replied: "The radar is responsible for positioning, and ultrasound and optical photography are responsible for determining whether it is a giant worm. ”

"So complicated?" Xiao Yuan exclaimed.

"It's not that exaggerated, they are all low-power devices, and the detection distance is no more than one kilometer."

The armored car drove through the city defense line that was firing fiercely, and Ye Han turned the camera on the roof of the car to carefully observe the situation nearby.

After driving away from the defense line for more than 400 meters, a large mosquito suddenly appeared on the green screen, and before Ye Han could see the appearance of the giant mosquito clearly, a tracer bullet had already hit the chest of the giant mosquito, cutting off the giant mosquito as a chest.

The broken giant mosquito dragged its broken wings, like the seeds of a maple tree, and spun and fell.

Then an unnamed flying insect bursts into the screen, and the giant insect is hit by two bullets at the same time, shattering into three segments in the air.

Ye Han silently turned off the screen and no longer looked at the situation outside.

It is said that the scale of the insect plague in the south is poor, and he has always thought that the giant insects in the south are scattered and unformed, but now he knows that although the giant insects here are fighting on their own, their scale is not smaller than that in the north.

He looked at Shen Hao and asked, "How did the Pulp River survive when it didn't have a defense system?" ”

"How can you stand up, don't go out at night, and when you go out, you will admit that you are unlucky." Shen Hao said, "But there were really not so many insects at that time. ”

Ye Han looked back at Pulhe City, there are basically no street lights and landscape lights in the urban area, but there are still a lot of lights in the buildings, and insects have phototaxis, if there is no light in the city, will the situation be better?

But he just thought about it, there are so many people in Pulhe City, it is impossible not to think of this, and it is not his turn to worry about it as an outsider.

A few minutes later, the gunfire could no longer be heard in the armored car far away from the city of Pulye, but the distance was still a little close, and it drove forward for a while before driving away from the road protected by the machine gun tower under the guidance of Shen Hao, and drove onto a concrete road that did not know where it led.

The concrete road has not been used for a long time, and the road is littered with dead branches and leaves, and weeds stubbornly poking their heads out of the cracks. The vegetation on both sides is much denser than near the road, and there are even many large trees with roots that are more than ten meters high.

After leaving the road, Antonli turned off his headlights as prescribed and drove cautiously with the vision provided by the night vision device, but the lights in the forest flickered from time to time, fluttering around like ghost fire.

Antonli asked curiously, "Staff Officer Shen, what's bright outside?" ”

Shen Hao smiled: "It's okay, that's a firefly, a giant one." ”

"And fireflies?" Xiao Yuan immediately became interested, "Captain, can you go out and have a look?" ”

"Be honest, you'll see it in a minute." Ye Han glared at Xiao Yuan.

Wearing armor to drill out of the roof hatch, there must be no problem in safety, and it is impossible for giant insects to get into the car from the roof, the problem is that they can block giant insects, but they can't stop ordinary insects, and it would be bad if a few mosquitoes flew into the car.

Xiao Yuan grinned in disappointment, and leaned on the screen to take a look, but the night vision screen was full of green light, and it didn't feel like a child at all.

Watching fireflies, it is still immersive and more atmospheric.

Shen Hao smiled: "Don't worry, you'll see it later." ”

"Are there a lot of glowworms?" Ye Han asked.

"Quite a few, especially in the woods."

Ye Han sighed: "I learned it when I was a child when I was in school, and said that the ancients caught a bag of fireflies to go home for lighting in order to study. ”

"Are you kidding?" Xiao Yuan said, "I have always wondered, how can the glowworm light up more, how can it be possible to read the words in the book?" With this thing for lighting, it's strange to be tired of myopia. And what is reading with the snow light, is the snow light very visible? ”

Ye Han couldn't help but laugh: "You kid, can't you bring your brains?" (To be continued.) )