Crawling over all kinds of dirty things, and crawling on top of food, I think most people are extremely bored with flies, but it is difficult to eliminate, because flies are too flexible, mosquitoes can shoot with their hands, but flies are very handy, because flies have many compound eyes, and their vision is very sensitive. The fly is also very capable of reproduction, and maggots are its larvae.

As the saying goes, a headless fly crashes, can a fly survive without a head?
According to general experience, as long as the head is lost, the animal will die. However, there are indeed some animals in nature that are more tenacious in life force, even if the head is lost, the body is broken into two pieces to survive.
Earthworms are a special case of this, if we cut the earthworm into two pieces, as long as the proportion is appropriate, for the earthworm species with a more tenacious vitality, sometimes the headless section can also live, and after a while it can grow a new head.
In fact, animals that can still live after the head is lost are generally inferior organisms, because their nervous system is relatively simple, the regulation of physiological functions does not completely depend on the nervous system on the head, and the regenerative ability is also relatively strong, so it can survive. For example, the nervous system of mammals is more complex, and even if it can grow another head, it will consume a lot of energy.
I once watched a video of a headless fly playing with its head, and it might be trying to put its head back on, but it's impossible.
The fly looked dirty to us, in fact he loved to be clean. Flies crawl around in search of food, or to lay eggs. The fly has a lot of barbs on its legs, which is why it can climb on the glass, so it is bound to get stuck with other things, so the fly will rub it from time to time.
As for whether the flies will rub their heads off, this really won't, I don't believe you try it yourself. Of course, it is not excluded that there is a very small probability, after all, some antelope horns in nature will kill themselves.
In dangerous situations, geckos will survive by breaking their tails, and after a while they will grow new tails. People do not have limbs, as long as they have sufficient conditions, in fact, they can live. But it is impossible for a fly to survive by cutting off its head, because if the head falls off, it will not grow new ones. Because flies do not have the regenerative ability of earthworms, and the body structure of flies is more complex.
The fly screwed its head off and played by itself, which was actually a human prank, and it is estimated that the flies did not know at this time, and they were playing with their own heads.
After all, the head is the highest decision-making system, and the fly without the head is inevitable, and it seems that the ancients were also very good at observing.
Even if some animals die, there are still some neural reflexes, such as the decapitated snake head, which can still bite people within a few tens of minutes of just falling, which is the neural reflex. However, the fly can survive without a head, which is not the same as this situation.
The headless fly is rambling because it is really not dead, or not dead.
For mammals, the head is very important, without the head there is no way to breathe, immediately will die. Without a head, blood is also rapidly drained from the wound.
But flies, like cockroaches, have no head and can breathe with the stomata in their abdomen. Flies are insects, and insects do not rely on blood vessels to transport oxygen and nutrients like mammals, and even if the head is lost, there is no blood loss.
To be sure, the headless fly will indeed survive for a while, but not far from death. The cockroach is known as the undead Xiaoqiang, and it is said that it has no head and can survive for several weeks at the longest.
Because there is no head, the flies have no way to eat, no way to avoid danger, and will eventually starve to death or be preyed by other animals, and die of bacterial infection.
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