Can fireflies emit ultraviolet rays, and do fireflies emit light

You can't see anything that emits ultraviolet light, and everything you can see is visible light.

Plants and animals do not seem to emit ultraviolet rays, and ultraviolet rays are harmful to cells. Kill yourself, why bother.

- Elected by voters2007-03-21 21:42:08 Fireflies are a group of beetles with repellent bodies and soft wing sheaths, it is estimated that there are about 2,000 species of fireflies in the world, and according to the environment in which firefly larvae live, they can be divided into three types: aquatic, semi-aquatic and terrestrial.

The luminescence of fireflies, simply put, is a series of complex biochemical reactions that occur under the catalysis of luciferin, and light, that is, the energy released in this process, different types of fireflies, different forms of light.

The luminaire of a firefly is composed of light-emitting cells, reflective layer cells, nerves, and epidermis.

If the structure of the luminaire is compared to the lamp of a car, the light-emitting cells are like the bulb of the lamp, and the reflective layer cells are like the lampshade of the lamplight, which will reflect the light emitted by the light-emitting cells in a concentrated manner.

The efficiency of fireflies is very high, and it can convert almost all chemical energy into visible light, which is several times to dozens of times the efficiency of modern air bucket electric light sources. Because the light source comes from chemicals in the body, the light emitted by fireflies is bright but has no heat, and people call this light "cold light".

As for the purpose of firefly light, the hypothesis put forward by early scholars has the functions of courtship, communication, lighting, warning, display and regulation of the population, but in addition to courtship and communication, other functions are only the imagination of scientists, and it is not until recent years that scholars have verified the warning: in 1999, scholar Knight (Michael Knight and others) found that lizards that accidentally eat adult fireflies will die, confirming that the glow of adults in addition to finding mates, there is also a warning effect, In 1997, Underwood et al. experimented with rats and confirmed that the luminescence of larvae has a warning effect on mice.

Fireflies are insects that are usually nocturnal and emit bright fluorescence. This phenomenon is known as "bioluminescence" and is a common physiological phenomenon. So, why do fireflies glow? Let's take a closer look.

The principle of firefly fluorescence

The fluorescence of fireflies is emitted by a chemical called "fluorescein". Fluorescein is stored in the firefly's body in special organs called "fluorescents", which are usually located in the firefly's abdomen. When fluorescein combines with an enzyme called an "oxidase", it creates a chemical reaction that releases energy, which in turn produces fluorescence.

The color of fluorescein is usually green or yellow, but different species of fireflies may fluoresce in different colors, such as red, orange, and blue.

So, why do fireflies glow?

FirefliesThe main reason for the glow is:To attract fireflies of the opposite sex to mate。Male fireflies attract female fireflies by emitting fluorescent signals in order to mate. Female fireflies will judge their breed and health status based on the fluorescent signals emitted by male fireflies to decide whether to mate or not.

FirefliesIt can also be done using fluorescenceCover and protectFor example, some species of larvae use fluorescence to mimic the fluorescence of other insects to avoid predators.

In conclusion, the luminescence phenomenon of fireflies is a very amazing physiological phenomenon, which involves complex chemical reactions and ecological adaptation mechanisms. At the same time, fireflies have also become a symbol of ecological culture in people's minds, adding a mystery and charm to the natural world.

Due to environmental pollution, habitat destruction and other reasons, the population of fireflies is decreasing. To protect fireflies, we can take the following measures:

1.Reduce nighttime light pollution。Fireflies are mainly active at night, and the bright light at night will interfere with their life and reproduction, so we should try to minimize the lights at night, or choose a light source that has less impact on fireflies, such as yellow or red light.

2.Protect the habitat of fireflies. Fireflies live in woods, grasses, wetlands, and other environments, and the destruction of these places will directly affect their survival.

We should protect these habitats as much as possible and reduce damage and pollution.

3.It is forbidden to catch and eat fireflies. In some areas, the habit of catching and eating fireflies exists, and this behavior affects not only the number of fireflies, but also the ecological balance.

4.Grow suitable plants. Some plants can provide food and habitat for fireflies, such as strawberries, meadow elm, ginkgo, etc.

We can afford to plant these plants in the right places to provide better living conditions for fireflies.

In short, protecting fireflies requires our collective efforts and attention. Only by protecting the fireflies can they continue to shine their beautiful light on the earth.

1. Characteristics of firefly light:

1. The light of fireflies is a kind of cold light, that is, there is light but no heat.

2. Fireflies can control whether they emit light or not;

3. The light of fireflies will be relatively transparent;

4. Isoleucine when yellowish-green light is emitted.

residues and oxidized fluorescein.

The binding is quite tight, while the two are relatively loosely bound when glowing red;

5. Fireflies will naturally turn off the light after being frightened to prevent natural enemies from discovering themselves, so not emitting light in your hands can be explained as being scared by you.

2. The reason why fireflies shine:

1. The luminescence principle of fireflies is because there is a phosphorus-containing luminescent substance and a catalytic enzyme in the part of its luminous device.

Fireflies will have some pores on the luminaire, and after the air is introduced into the pores, the luminescent matter will be oxidized by the catalyst of enzymes and oxygen. And then through this mechanism, the light is emitted.

2. The fluorescence of fireflies is generated by the reaction of fluorescein and luciferase in their bodies.

The light emitted by fireflies is faint, but it is still useful. In ancient China, there was a story about catching fireflies and putting them in bottles to illuminate books and reading at night. In the Second World War.

During this period, the Japanese army patrolled in the forest. In order to read short commands without being detected by the enemy, fireflies were used for lighting.

The process by which fireflies emit light can be used to explain the mechanism of some bioluminescence. ATP is a compound used by biological cells to store energy, ATP can interact with fluorescein in fireflies to form a fluorescent compound, which is catalyzed by luciferase and produces fluorescence in the presence of oxygen. So, this glow is a type of chemiluminescence that does not produce heat when it emits light.

The role of fireflies in luminescence: 1. Courtship - that is, as a signal for communication between males and females. Most of the adults that fly in the sky are males, while females are usually only found in grass.

crawling, plus some females resemble terrestrial.

The Taiwanese mountain window firefly, Taiwan window firefly, and Yunnan flat firefly even have a completely different appearance from the male insects, and at this time, in order to courtship, they will flash and send out light to transmit information.

2. Vigilance - when fireflies are interfered with by external enemies, in order to drive away the enemy, they emit a strong light to scare off the enemy and achieve the purpose of self-preservation, this phenomenon is especially obvious in the larval stage.