Fart Worm, real name Gun Rifle Armor, fires hot venom from its tail when in danger, accompanied by a loud bang!
I believe that many people will encounter this small bug when they are young, the appearance is unremarkable, but when the finger is about to touch it, it will make a "loud noise", followed by a bad smell. When I was a child, I was not less affected by this thing, mainly because the smell left on my hands was very bad and it took a long time to wash it to fade.

Until now, I learned that this insect is called a cannon rifle armor, and the gas emitted is a kind of venom in the body. In this small body, there are many, many secrets hidden!
< h1 class = "pgc-h-arrow-right" > artillery rifle armor</h1>
The gun rifle armor is very powerful and domineering at first sound, and like its name, the shape will look unusual, the body is about 8 mm long, and the body is green and yellow, emitting a metallic luster. They like to march at night and gather together to hide under rocks during the day.
When the gun rifle is in danger, it fires a shell venom from its butt that can spray a chemical with a strong pungent odor 500 times per second. And the spray liquid temperature is very high, after contact with the air will vaporize, accompanied by a strong sound to repel the enemy, to achieve the purpose of protecting themselves.
The venom it fires can choose the direction of the spray according to the position of the enemy, and play the role of precision strike. Scientists have done experiments in which the harvesting ant and the gun armor are kept in the same vessel, and when the harvester ant attacks, the cannon armor will fire defensive shells. At close range, the harvester ants are directly knocked down and lose their offensive ability.
In this experiment, the firing distance of the shell fired by the artillery rifle armor reached 3 centimeters, which is about 4 times the length of the body. If the body of the cannon rifle is enlarged in equal proportions, then the range of its venom can reach about 10 meters, and nature can spray its own venom so far, almost none, not even a cobra, but unfortunately it can't grow so big!
When they spray venom, their bodies undergo a wonderful chemical reaction. Venom is not sprayed casually like a poisonous snake, but is carried out with a precise design. The venom fired by the gun armor is a quinone-like substance. The venom in its body reacts with hydrogen peroxide stored in another place, and when the two come into contact, they produce a fierce chemical reaction.
That's how the noise we hear comes from, and the temperature is also produced by chemical reactions in this step. Predators are likely to be "scared to death" in the face of this sudden noise, and coupled with the high temperature and venom effect, the average predator cannot enter the body of the cannon foot armor. Like frogs and toads, they will be hurt.
With such a high temperature, can the ass of the gun rifle armor withstand it?
<h1 class= "pgc-h-arrow-right" > the evolution of the ass</h1>
If you directly take the boiling water to fire the cannon rifle armor, it is estimated that it will die in minutes, but for the instantaneous heat of a small amount of venom spray, this temperature is still bearable. In the gluteal gland system of the cannon rifle, it is wrapped in a protective film composed of proteins, cuticles and other substances. It protects its buttocks from being burned by high temperatures and from being invaded by venom.
This magical structure was evolved little by little over millions of years by the artillery rifle armor. The original cannon rifle armor did not have such a strong butt, and later in the face of strong enemies, it constantly evolved itself, strengthened the venom, and also strengthened the ass.
In nature, it is estimated that no animal can have such a "strong" butt!
Did you ever get stinked by fart bugs when you were a kid?