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It's not, it's just the moth's perception of light.
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1. Phototaxis.
The more scientific explanation is the phototaxis of insects. In the dark of night, they need to rely on the faint light source of nature to navigate. Before the advent of human beings, the main light of the night basically came from the moon and stars in the sky.
In order to ensure the stability of the route, they will look for a distant light source as a reference. And those celestial bodies that glow are like a compass that guides them to fly.
2. The light orientation hypothesis.
If moths can fight fires, why don't they fly to the moon at night?
If you've ever observed moths fighting fires, you should be able to notice one of their flight characteristics. That is, the moths do not all crash straight into the light source, but spiral towards the light source in a circle.
As a result, the moth-fighting orbits we can get become spirals. So it would be more accurate to say that moths do not fight fires but surround them.
In fact, moths use celestial bodies as reference points, which is a kind of lateral navigation positioning. Because the stars and the moon hanging on the horizon are both extremely distant sources of light. So when these lights reach the Earth, they can already be seen as parallel rays to each other.
Using the parallel rays emitted by the moon as a reference, the moth's flight path is a straight line.
The normal flight of the moth is based on these parallel rays of light. They only need to fly at a fixed angle to the incident rays to ensure that the course is always forward.
But with the advent of artificial light sources, the situation is different. In contrast to the moon and stars, artificial light sources are both near light sources, so light is emitted from a point.
Take a street lamp on the side of the street as an example and imagine a moth that happens to see the light from a distance. When the moth thinks that the street light is the moon, it will try to fly at an angle of 45° to the light.
Because the street light line is not parallel to the ray, the more the moth flies at this angle, the more the track curves inward. As a result, the moth's orbit forms an equiangular spiral.
In a coordinate system, the angle between the spiral and the ray of an isometric helix is always a fixed value. And the moth also followed this spiral track, hovering and gradually approaching the street lamp, and finally collided directly with the street lamp.
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Many times people use moths to describe vigorous love, and this explanation is just an expression of mood, which is certainly not the case. In addition, there are some explanations that say that it is phototaxis, and insects love to fly to places where there is light, because there are real objects here, and this explanation sounds a bit far-fetched. In fact, the range of wavelengths that can be seen by the eyes of insects is different from that of humans, and what people think is dark is not necessarily dark for insects.
The real reason why moths are fighting the fire is that the bugs are flying straight ahead, and that's the reason. Seeing this, many officials will be confused, what is going on? Let's listen to it slowly.
In the long evolution, nocturnal insects can only fly in a straight line with the help of moonlight, and they must ensure that the direction of their movement is always at a stable angle with the light, and this angle is always the same, and it can always fly in a straight line. However, there is a condition for this, that is, the moon is required to be far enough away from the insect, and when it is far enough away, the moonlight is sprinkled on the earth, and each ray of moonlight is parallel to each other, but this parallelism is only approximate, as long as the insect flies at a fixed angle with the light, then its flight trajectory must be very similar to a straight line. If you still don't understand, you can imagine yourself on a zebra crossing, except that the zebra crossing is infinitely wide, and there are no buildings or cars around you to refer to.
So how do you know for sure you're walking in a straight line? Every time you cross the horizontal line of the zebra crossing, see if the angle between your direction of travel and the zebra crossing is consistent with the angle of the previous crossing, if so, you must be walking in a straight line, if not, you must have deviated.
This moonshine is like a zebra crossing, this bug is you, and this is how the bug determines the direction. But now, the light appeared, a lamp in the field at night, or a fire, which was much brighter than the light of the moon. When the insects around the light are flying, they will naturally regard the strongest light source as the object that guides it in the direction of its flight.
In the past, there was no human activity, and the moonlight was always the brightest, but now that humans have appeared, and the lights have appeared, it interferes with the activities of the insects, and at this time, the wisps of light are not parallel to the insects, because the moon is parallel because the moon is far enough away, but you think, the lights are so close, and every ray of light comes out of a point, and it is radial. However, the insect's brain is not developed, and it cannot adjust its own instincts, so it still follows its previous flying habits and keeps the same angle as each ray of light, and flies like this. Flying like this, the end result is that you spin around and enter the trap of the light.
If you still can't imagine it, you can still imagine yourself standing on a zebra crossing, but this time the zebra crossings are not parallel to each other, but at the farther end, say 15 meters away, all the horizontal lines converge at one point, and then you follow the same route as the angle between each line, and you will eventually walk out of a rotating line, and finally you will come to the convergence point of the zebra crossing. Doesn't it feel interesting?
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In fact, scientists believe that moths are not attracted by the glow of the flames, but, on the contrary, are disoriented by the light source.
Like many flying insects, moths use light as a compass to find their way forward. When the light source is the sun or the moon, since the light source is very far away, the emitted light reaches the moth exactly parallel to the direction it is traveling. As a result, moths, as well as many other flying insects, receive light as part of their eyes, and as long as the moths fly in a straight direction, the visual patterns that their eyes receive remain the same.
Things are different when the light source is a nearby candle. The angle at which the light reaches the moth's eye changes as the moth travels in a straight line, just as a moth flies under a moon or sun source, and they try to maintain a constant angle when flying against an artificial light source. As a result, the end result is that it constantly revolves around a candle or other artificial light source.
This creates the illusion that the so-called moths are "attracted" by the light source, and they inevitably end up in a scorching flame.
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Moths are nocturnal animals, so their night vision is very strong, and compound eyes are the main visual organs of moths, which are overlapping elephant eyes, so as long as there is a glimmer of light at night, they can be caught by moths, so as to figure out their flight direction.
Later, the advent of artificial light sources caused confusion in the flight at night, so the moths died one after another. The behavior of the moth to the fire is often described as the great spirit of sacrificing one's life for righteousness, but in fact, its behavior is not "suicide". In the process of fighting the fire, they do not hit the light source directly, but spiral close to the light source, so they will form a spiral, and more preparatively, the purpose of the moth is never to fight the fire, but to bypass the flames.
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The reason why moths choose to fight fires is because a certain state of moths is suitable for choosing to extinguish. Flames.
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Why do moths fight fires? And so it is! It's finally clear today!
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Moths. The reason why they put out fires is because when flying at night, they rely on light to determine the direction of flight.
In order to ensure that the course of its flight does not change, the moth has to look for a distant bright spot as a reference.
Because the moon and stars are far away, and the distance of the fire is relatively close to the moth, the moth mistakenly takes the fire light as the moonlight, and as a result, it gets closer and closer to the fire, and will eventually be burned to death by the flames, which is the phenomenon of moths fighting fires, which is mainly related to the change of light.
Moths are small in size, appendages are covered with scales, and there are some hair nodules, hair tufts, branch thorns and other substances distributed in each segment of the body, and at the same time, their abdomen also has 2 or 5 pairs of feet, which can spin silk cocoons or form nets, and the eggs they lay are generally round, hemispherical or oblate.
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Moths will be burned to ashes after putting on fire. This idiom means that the moth pounces on the fire, which is a metaphor for self-defeating and self-destruction.
It comes from Sui Yao Cha et al.'s "Liang Shu to the Irrigation Biography": "Like a moth going to the fire, it is impossible to burn oneself." Later generations refined the idiom "moths to the fire".
Its structure is verb-object, which can be used as a predicate, adverbial, and definite in the sentence; Derogatory.
Idiom Usage:
1) Written Usage:
Moths to fire, meaning moths to the fire, metaphorically seeking their own death and self-destruction. This idiom has a derogatory connotation, and is generally used as a predicate, adverbial, and definite in a sentence.
2) Application examples:
Yuan Yang Xianzhi's "Xiaoxiang Rain": "I have always been unable to find him, he came to cast it today, isn't it a moth to the fire, begging for death to eat." ”
The above content reference: Encyclopedia - Moths to Fire.
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There are generally two explanations, but they both basically mean the same.
After a long period of observation and experimentation, a scientist finally uncovered the mystery of "fighting fires". They found that insects such as moths relied on moonlight to orient themselves when flying at night. The moth always makes the moonlight cast into its eyes from one direction.
After the moth is running away from a bat or turning around an obstacle, it only needs to make another turn, and the moonlight will still come from the original direction, and it will find its direction. This is a kind of "astronomical navigation".
The moth sees the light and mistakenly thinks it is "moonlight". Therefore, it also uses this fake "moonlight" to discern the direction. The moon is so far away from the earth that moths can fly in a certain direction as long as they maintain a fixed angle to the moon.
However, the light was so close to the moth that the moth, instinctively keeping itself at a fixed angle to the light source, had to circle the light until it finally died of exhaustion.
Second, many insects only fly among the flowers when the sun sets and after nightfall, collecting nectar on one side and pollinating plants on the other. In the dark night, they can successfully find the flowers, which is the credit of the "flash language". When nocturnal insects fly in the air, due to the vibration of their wings, they constantly rub against the air, produce heat energy, and emit ultraviolet light to "ask for directions" to the flowers. When the special structure of the insect receives the echo of the "luminous light" of the flower, it will fly away to pollinate the flower, so that it can bear fruit and pass on to the offspring.
In this way, the light language of insects also contributes to the prosperity of nature. Therefore, nocturnal insects are mostly phototaxis, and "moths fighting fires" is a true portrayal of this habit. In addition, in fact, the moth does not subjectively want to die in the flames, but because of the structure of its compound eyes, it gradually approaches the fire when it flies around the fire at a spiral angle, causing the fire to be extinguished.
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If you mean scientific reasons, this is it:
After a long period of observation and experiments, scientists have found that moths fly at night. It relies on the moonlight to determine the direction. It always causes the moonlight to be cast into its eyes from one direction.
When it turns around the obstacle, it only needs to turn one more corner, and the moonlight comes from the original direction. And so it found its way. When there is no moon, when the moth sees the light, it mistakenly thinks it is "moonlight"!
So, it uses this fake "moonlight" to discern the direction. As long as it keeps itself at a fixed angle to the distant moon, it can make itself fly in a certain direction, and the direction will not be wrong. However, because the light is so close to the moth, the moth will keep circling the light in order to maintain a fixed angle to the light source.
Until finally he died of exhaustion.
But it is ...... in the category of "troubles".I don't know exactly what you're trying to ask.........
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Latest Research Results:
Henry Shaw of the University of North Carolina in the United States has studied the latest results of moths fighting fires.
The material he used was the American cotton bollworm. He glued the moth to the plastic foam debris and placed it in a pool of water to record how the moth drove the foam boat. When there are no lights, the boat drifts adrift aimlessly on the water without a purpose.
Light a lamp on the surface of the water, and the boat will drift towards the lamp, but instead of approaching in a spiral as in the standard answer**, it rushes straight over, a few hit the lamp straight, and most are towards the sides of the lamp, as if they were attracted by the lamp at first, but at the last moment they try to escape. Xiao believes that the results of this experiment are difficult to explain with popular theories. He suggested that the moth took the light for the morning light.
Moths fly at night and hide during the day, and when the early morning sun just appears, the moths fly towards the sunlight so that they can find the best hiding place and hide quickly.
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Insects are phototropic and fly over when they see the light...
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Survival is the deepest instinct written into genes. Only the mind can resist instinct, so only humans can commit suicide. Other animal suicide legends, such as lemmings running to the "Covenant of Death", are mere legends.
But moths fighting fires are not legends, but facts that everyone has seen, and if this is not self-destruction, then what is it?
The moth is actually the fire. Lights can also attract them to pounce, and are generally not lethal to them unless they are moth traps designed to kill them. So, they are not attracted to the light to seek death.
Moths are nocturnal animals, and they choose to come out at night in order to avoid predators in the dark, and phototaxis is equivalent to revealing their whereabouts, which does not seem to be their habit. Why do they behave so unusually?
Moths have a much older history than humans, and their phototaxis does not arise because of human lights. Before the dawn of mankind, the brightest source of light at night was the moon. Maybe the phototaxis of moths is related to the moon?
The first to think of this was the German entomologist von Buddenbrock, who in the 30s of the last century proposed the hypothesis that moths were likely to use the moon as a navigation tool when flying at night. Since the Moon is very far away from the Earth, the relative distance between the Moon and it does not change when the moth flies, and its position in the air appears to be motionless. Therefore, the moth can use the moon to orient itself, for example, by keeping the moon 45 degrees in front of the right while flying, so that its flight trajectory can be kept in a straight line.
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