Why do cockroaches turn over and die when they die naturally????

Because the cockroach's stomata are in the abdomen, and cockroaches breathe through the stomata in the abdomen, the insecticide oil will cover the cockroach's stomata so that the cockroach cannot breathe until it dies. It's the same as when a person is about to suffocate in the water, he struggles to swim out of the water to get more air. If you use detergents such as dishwashing detergent or soapy water, you can also kill cockroaches.

Therefore, cockroaches are not afraid of pesticides, but the stomata will be blocked, causing cockroaches to suffocate to death. There is another saying that the back of the cockroach is harder and heavier, which is used to protect the place, and the abdomen is more fragile, although it is relatively light, when the cockroach dies, the whole hand and foot will be struggling, the body will continue to move around, and finally because of the heavy back and light belly, and the center of gravity will be unstable will turn over, not only cockroaches, but also the vast majority of insects.

In fact, not only cockroaches, but also fish, birds, and other beetles, most of them are facing down when they die, of course, it is not absolute, and some will also have their abdomen downward due to the terrain or special actions before death, but it is just rare.

The first statement:

1. The body arrangement of most animals is protective or bone on the back, and the muscles and other fragile tissues are on the ventral surface, so the back is heavy and the belly is light.

Second, the protective surface (back) is streamlined in order to be strong, and the shape of the supporting surface (foot) is irregular.

3. Animals are mostly the most vulnerable before they die, so the muscles are weak to support the heavier dorsal tissues, and before they die, their backs fall to the ground due to gravity.

Fourth, some animals land on their backs due to accidents, and the strength of their muscles is not enough to turn over, and they will die after too long.

The second way of saying:

Because cockroaches have stomata in the abdomen, it breathes through the abdomen. So the grease of the insecticide covered his stomata and prevented him from breathing. It's like when a person is about to suffocate in water, they struggle desperately to get more air through their nose.

You can also kill cockroaches if you use something like dishwashing detergent or soapy water.

Therefore, cockroaches are not afraid of pesticides, but their stomata are blocked and suffocated.

The third way of saying:

In fact, not only cockroaches, but most insects with flat bodies will turn their bodies upside down and face the sky when they die.

Because insects generally have six legs, and they are symmetrical on both sides; Once the insect is about to die, the nervous system.

Loss of function (motor nerve disorder), the six feet can not be controlled, so the six feet involuntarily shake, shrink, fall, the whole insect loses its center of gravity, because it will continue to struggle before death, so the abdomen is turned over, and the six feet are facing up. And when the insect belly is facing up, it is difficult for the six legs to turn over because they can't grasp anything. In the wild in summer, I often see a lot of insects on the road, and they are killed by the sun because they can't turn over.

The third statement is right, Wang Guibo is right.

When a cockroach dies, it will turn over, because its branches have heavier backs, smoother and curvatures, and they may not be able to turn them back on their own. This is due to the fact that the back is heavier and more stable, and when it is dying, it loses the ability to control the foot and is prone to rolling over. Even if a human being is in the prime of life, if he accidentally turns over, due to the heavier, smoother and curvature of his back, he may not be able to come back by his own strength, and may eventually die of thirst and starvation.

Most of the cockroach drugs are neurological drugs, and after the cockroach is hit, it will cause nervous system disorders and lose the ability to control the foot; It is also said that cockroaches are in order to breathe, and some drugs will block the cockroach's breathing, and the cockroach's breathing organ is in the abdomen.