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Fireflies or fireflies are small beetles belonging to the Order Coleoptera, Family Lampyridae and Elateridae, also in the genera Lampyria, Luciola, Phrixothix (PIBID BIOLOGIA UEPG, 2012) and a third smaller and lesser known family called Phengodidae (VIVIANI, 2007) . The word firefly comes from the Greek, where pyris means fire and lampis means light. . They receive this name because, it has as characteristic the luminous organs that give them the capacity of luminescence (bioluminescence), that is, they produce cold and visible light.    gabriel cardoso de sousa 1703

OK

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 living water

the living water is one of the most well-known and popular within this luminous group, as well as being one of the most spectacular. With your body, the jellyfish, you can create a scenario full of bright light.

This can be done because your body contains fluorescent protein, photo-proteins and other bioluminescent proteins. Jellyfish radiates bright light at night when they feel a little irritated or as a method to attract their prey that is certainly mesmerized by its beauty.

maria fernanda maia furtado - 1703

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Jellyfish is a taxonomic grouping that includes jellyfish, water mothers, jellyfish or jellyfish, free life forms of adult cnidarians, which are found in the Scyphozoa, Hydrozoa and Cubozoa classes. Almost all jellyfish live in the oceans, as components of zooplankton.
Jellyfish are related to corals and sea anemones. There are about 200 species, or types, of jellyfish. They are found in all oceans. Most live on or near the surface of the water.

The typical jellyfish is shaped like a bell or an umbrella. Some are so small that we cannot see them. Others are over 2 meters. They can be transparent (you can see through them), others are white, brown, pink, blue or burgundy. Some have eyes around the edge of their bodies. The mouth and stomach are in the middle of the body.

(Bárbara 1703)

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They are known as luminous millipedes from the Sierra and have recently been discovered to emit blue-green light, especially when disturbed. Some species have only a weak glow, while others glow incredibly bright.  These millipedes are found only in California's forests. Another interesting rumor is that they can't even enjoy their own light shows: because they are blind! Although these millipedes rely on other senses to hunt for decaying debris, their predators are usually hunters of mammals, such as rats.

Sofia Lancellotti 1701

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At the bottom of the ocean there is a marine animal with a luminous and charming body. It is a ctenophore animal, which has comb-like tentacles.

Although it is called that, it is not a jellyfish, they move around hitting their "combs" that are nothing more than lines composed of eyelashes that shine when hit by white light.

But don't be fooled by their beauty: they are ultra-fast attacking predatory animals. These creatures have tentacles that they use to trap prey, more like stingers, as they produce a sticky secretion that traps their enemies without being able to escape.

STEFANNY RODRIGUES 1703

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Firefly squid The firefly squid also known as sparkling enope squid is a species of squid in the enoploteuthidae family. It is the only species of the monotypic genus. It is a very beautiful and very attractive animal because of its brightness and it is a very small animal. These squids are found in Japan in the spring but spend most of their life in deeper waters between 200 and 400 meters. The firefly squid is a predator and actively hunts its food which includes small fish copepodes and other squids

Trabalho de ingles do aluno Enzo Matias Borges 1703

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The firefly is an insect that is famous for having a brightness through its emissence of biolumininess light. The biolumininess light is the production of light by living organisms. the mechanism behind bioluminescence involves a molecule capable of emitting light and an enzyme, called luciferin and luciferase, respectively. Light is emitted when luciferin is oxidized, this reaction being catalyzed by luciferase. The fireflys can be found usually in forest, field and marshes, and there are also more than two thousand species of fireflies around the planet.
Pedro Henrique Andrade de Lima-1703

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Jellyfish or sea jellies are marine animals that glows in the dark. You are probably thinking "how are jellyfish alive" . Jellyfish DON'T have brains. They dont have a heart, lungs or brain either! So how does a jellyfish live without these vital organs? Their skin is so thin that they can absorb oxygen right through it, so they dont need lungs. They dont have any blood so they dont need a heart to pump it.
Julia alevato 1701
How does jellyfish eat? Jellyfish have tiny stinging cells in their tentacles to pick or polarize their prey before they eat

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The lantern fish, also known as Symbolophorus barnardi, is a fish that lives in deep and salty waters. It glows in the dark and it can lives manly in the "Fossa das Marianas" which is one of the deepest parts of the world within the sea. This fish has the head as a kind of lantern that illuminates the ocean and can attract its prey. Another curiosity is that this fish is classified as one of the ugliest animals in the world.

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Millipedes, that glow. Just one of the critters that lives on the famous Alcatraz Island that we had no idea about until recently. They were discovered last year during a survey of the island's rat population. While most people are interested in the prison buildings and the history of the inescapable island, other visitors have their eyes on the animal life, including the seabirds like pelicans, cormorants and egrets, and you know, glowing bugs.

The millipedes were discovered last February as researchers used black lights in their work identifying the scale of rat populations. KQED writes, "To identify rats, National Park Service staff routinely place bait in feeding stations. The bait is laced with a non-toxic fluorescent dye that ends up in urine stains and feces. Surveyors later scan the grounds at nighttime with black light. The more glowing they observe, the larger they extrapolate the rat population to be. A recent February search turned up no evidence of rats. Instead, surveyors were surprised to discover millipedes glowing intensely white."

Maria Fernanda Reis - 1701

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Did you know that they also glow in the dark?In fact,skorpions do not glow in  the dark,but they do glow under ultra violet light.
Although some scientists have studied and investigated this incredible phenomenon in scorpions for years,the reason for this reaction remais unknown.
Can you imagine walking at night and coming face to face with a brilliant scorpion?It must be quite an experience,right?

by: LUCAS BRANCO 1701

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the firefly is a very curios and interesting insect, which is part of the coleoptera category, characteried by the blooming light emission. This species is very common in Brazil, being found in the lampyris noctiluca family, in which only the male insects are winged. 

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the firefly is a very curios and interesting insect, which is part of the coleoptera category, characteried by the blooming light emission. This species is very common in Brazil, being found in the lampyris noctiluca family, in which only the male insects are winged. 

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by ; Gabriel cardoso de sousa 1703

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The Jelly Fish is a living being known to be very mysterious, but here is some information about this biolumnicent animal:

*Even though it is a small animal, the jellyfish has many methods of defense and attack, one of then is the burn.

*Her tentacles can meassure up 36 meteres, uncredible, right?

* Some Jellyfishs can scare other predators through bioluminecence

* We usually see then transparent, but the JellyFish can be blue, white, red, or green. Crazy, right?

By: Kacio Araújo

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Jellyfish are one of the most beautiful animals in the animal kingdom.

          Jellyfish can reach from a few millimeters up to 3 meters in diameter and the tentacles can reach up to 40 meters in length.

Although they are usually blue, they can also be yellow, lilac, dark red or even bright orange.

Some jellyfish can create their own light, it must be wonderful.

Your mouth is in the center of the body, at the bottom, between the tentacles. With the strength she has, she can swim up against the current.

Instituto Marcos Freitas

May, 6th, 2020

Vitor Lourenço Ribeiro      1703

Teacher: Diego, English

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Noctiluca scintillans looks like algae. But, technically, it can function as an animal or as a plant.

This kind of proliferation is triggered by agricultural pollution, which can be devastating to marine life and local fishing, according to University of Georgia oceanographer Samantha Joye, who showed the Associated Press photos of the sparkling water.

Noctiluca is an organism formed by a single cell that eats plankton and is eaten by other species. Plankton and Noctiluca become more abundant when nitrogen and phosphorus from agricultural runoffs increase.

Unlike other similar organisms, Noctiluca does not directly produce chemicals that can attack the nervous system or other parts of the body.

But recent studies show that it may be linked to events that have been harmful to local marine life. Noctiluca's role in both prey and predator may increase the accumulation of toxins from algae in the food chain, according to oceanographer R. Eugene Turner of Louisiana State University.

Also known as sparkles of the sea, red Noctiluca scintillans contribute to red tides - blooms of deadly algae that are toxic to marine life. Excessive algae can also deprive water of oxygen, creating harmful dead zones. At the same time, however, RNS are important for ocean ecosystems, as they feed on other phytoplankton and zooplankton.

By: Maria Eduarda Pinheiro da Costa-1701

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The jellyfish is a beautiful marine animal. Some jellyfish shines, this phenomenon happens because the bioluminescence allows.
The bioluminescence is the production of cold light and we (humans) can see this perfect light in the dark.
The most common color in marine life is blue, because blue penetrates more in the water.
For the bioluminescence occur, the oxygen air is necessary.
They (jellyfishes) don't  have brains, hearts, gills, bones or blood.
Jellyfish are not really fish.
The bioluminescent jellyfishes are so beautiful!

Letícia Aguiar Nolasco de Carvalho- 1701

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The  Crystal jellyfish / Aequorea jellies are an animal that glows in the darkwith a bioluminescent protein used in the biotechnology industry. Bioluminescence is light produced by a chemical process within a living organism. The glow occurs when a substance called luciferin reacts with oxygen. This releases energy, and light is emitted.
this animal uses it to protect itself and to attack the other fish
smaller animals see the light and get closer and then when the smaller fish is close to Aequorea jellies it attacks and devours the small fish

Caio Pereira de Araujo 1703

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The firefly squid is one of the marine animals that glow in the dark. Every year on the coast of Japan, especially in Toyama Bay during the months of March and May, which is their mating season, the firefly squid and its fascinating natural spectacle of bioluminescence that occurs when the moonlight performs a chemical reaction with its outer membranes. The firefly squid take care of the shores of the beaches to spawn their eggs, offering viewers a surreal and incredible view at night

Luiza Gatto Luna Ferreira 1703

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Fireflies are common names for coleopteran insects of the families Elateridae, Phengodidae or Lampyridae, notorious for their bioluminescent light emissions. Their larvae feed mainly on vegetables and other smaller insects. roots and base of the plant stem. One of the most widely distributed and most common species in Europe is the Lampyris noctiluca, in which only the males are winged.The bioluminescent organs of the firefly are located at the bottom of the abdominal segments. Luciferin is oxidized by nuclear oxygen, with the mediation of the enzyme luciferase, resulting in oxyluciferin that loses energy, thus making the insect emit light. The females do it to attract partners, but their disadvantage is their own luminosity, which can also attract predators such as lizard.
Maria Fernanda Maia Araújo 1703

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bFireflies are familiar,but few realize that these insects are beetles,nocturnal members of the family lampyridae.They don’t attack,they don’t carry disease,they are not poisonous,they don’t even fly very fast.
Fireflies have dedicated light organs that are located under their abdomens.The insect take in oxygen and,inside special calls,combine it with q substance called luciferin to produce light whit almost no heat.
Each blinking pattern is q optical signal that helps fireflies find potential mates. Scientiets are not sure how the insect regulate this process to turn their lights on and off.

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Fireflies are familiar,but few realize that these insects are beetles,nocturnal members of the family lampyridae.They don’t attack,they don’t carry disease,they are not poisonous,they don’t even fly very fast.
Fireflies have dedicated light organs that are located under their abdomens.The insect take in oxygen and,inside special calls,combine it with q substance called luciferin to produce light whit almost no heat.
Each blinking pattern is q optical signal that helps fireflies find potential mates. Scientiets are not sure how the insect regulate this process to turn their lights on and off.

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ANA CAROLINA DOS SANTOS AMARAL- 1703 (desculpa tio n sei como tira de "ANONIMO")
Scorpions glow in the dark when exposed to ultraviolet (UV) light.  It doesn't matter that, in daylight, the animals are yellow, translucent or black.  Under black light, they glow with a fluorescent hue.  This characteristic is present in different species and appears in fossils 430 million years old.  A new study, published in the latest issue of the journal Animal Behavior, offers a reason for this property: the entire body of these arachnids can be a kind of eye, which 'feels' the variations of light and helps the animal to protect itself from predators.

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Although there are many brilliant aquatic mollusks, there is only one snail on land known to produce light: the tropical species, Quantula striata. In fact, it is the only terrestrial gastropod (among thousands of snails and slugs) known to be bioluminescent. It is so illusory (like many snails) that an image in the dark could not be obtained. The eggs were observed to have globules that glow in the dark continuously. Young and adult snails can produce small bursts of green light. Although many land snails communicate through pheromones, it is suggested that these tropical species may also use their bioluminescence as a means of communication.

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Bioluminescence, the ability to produce light, is a common feature among many marine animals, and is well represented in jellyfish. Jellies are free- swimming organisms that belong to the phylum Cnidaria, consisting of many different species, and the term also loosely encompasses the phylum Ctenophora, the comb jellies. Many jellyfish have the ability to bioluminescence, especially comb jellies, where more than 90% of planktonic species are known to produce light, most of bioluminescent animals are very hard to find.

Ana Clara de Moura Gomes,1701

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The firefly is that little insect that lights up gardens and forests. They live in temperate and tropical environments and more than 2000 species of them have been discovered. Fireflies glow due to the chemical processes that occur in your body caused by the consumption of oxygen. This process releases energy and that later turns it into cold light, this light is emitted by the organs below your abdomen and can have different colors such as: yellow, green and red.

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The Black dragonfish swin in the Southern Hemisphere as a depth of 2.000 meters.

This bioluminescent fish have photophores that can produce light. The species is covered in photophores all along its body surfaces and possesses photophores under its eyes and at the long barbel. This fish uses the bioluminescence to hunt, luring the fishes around.

This specie possesses the strangest and most extreme case of sexual dimorphism. The females reach 40cm and the male reach only 5cm.

Matheus Guimarães Santoro 1703

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Is the most common species of North America. P pyralis is a flying and light-producing beetle with a light organ on the ventral side of its abdomen. The Photuris female may also lure a Photuris pyralis to be eaten to obtain spider-repellent steroids called lucibufagins.

Rafaela BK 1701

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Guilherme Soares 1703

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Since it is one of the most well-known and popular within this luminous group, besides being also one of the most spectacular. With your body, the jellyfish, you can create a scenario full of bright light. This can be done because your body contains fluorescent protein, photo-proteins and other bioluminescent proteins. Jellyfish radiates bright light at night when they feel a little irritated or as a method to attract their prey that is certainly mesmerized by its beauty.

Guilherme Maximo Brandão-1703

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bioluminescence scorpion

Some organisms have the ability to emit their own light, a phenomenon known as bioluminescence or scorpion also glows in the dark and has several sizes that they feed on passing insects and also scorpions eat scorpions many of them are poisonous and can kill and an animal that people is very afraid and an animal that lives in the desert. They only shine when they appear in ultraviolet light even in very dark environments, scorpions usually take shelter under stones, trunks, fallen or other similar objects

Pedro Simão Brito, 1703

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At the bottom of the ocean, in the deepest waters, live several different species of luminous fish. They have a differentiated structure and, therefore, they are able to turn on a light of their own. They can use this light to defend themselves against predators or to attract pairs for mating. Hunting some animals for their meal consumes a lot of energy, so some use their light to attract their prey so they don't get tired. The most common color in bioluminescence is blue because of the environment they live in.

Luiza Brigante
1703

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During the period from March to May,thousands of squid fireflies appear in the toyama bay called in Japan Hotaru ika (ほ た る い か), take care of the shores of the beaches to spawn their eggs,the spawning show is so beautiful that it was considered a special natural monument.The spawning show is so beautiful that it was considered a special natural monument.The squid is equipped with special light-producing organs called photophores that emit deep blue light. Large “photophores” can be found at the tips of the tentacles, as well as around the eyes. Thousands of them are all over the squid's body, giving it the ability to emit light throughout its shape

Daniel S. Pascoal
-1701

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“The Lady Gaga of Mathematics”

A recently discovered species of spider, has earned the nickname "Lady Gaga of Mathematics", for its extravagant neon green color and appearance that stands out in nature. The name alludes to the singer known also for the unique and colorful style in her presentations.

The animal of the orb-weaving family also added the term "mathematics" to the nickname because it weaves its webs and were millimetrically calculated. The result is an aesthetically spectacular network.

The neon spider was recently discovered in Finland.

Pedro Cordeiro
1701

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The South American ball frog (Hypsiboas punctatus) is the first fluorescent amphibian ever found on Earth.

In normal light, the frog is a dull greenish brown with small red spots.
But the chemical has never been found in vertebrates before.

Fluorescence is known in some fish, scorpions and birds, but never in the more than 7,000 species of amphibians out there.

Scientis:
Scientists at the Bernadino Rivadavia natural science museum in Buenos Aires found that frogs increase their brightness by up to 30%

Gabriel Keller
-1701

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Without a doubt, it is one of the rarest sharks in the world. Physically, he is not as fearful as his brothers. However, we must not devalue its flattened body, since this species of shark is also a predator and good hunter like its other relatives. It must be recognized that his ability to mimic the environment is a great advantage for him

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The Antartic Krill is a crustacean  whose length varies between 8 and 70 mm. Is foud among the most important  animals in the artantic food chain,as it a great sourse of food  for many others predatory animals such as seals, penguins and birds. The krill has numerous organs that can transmit a yellow light for about 3 seconds at a time. It is said that this crustacean light ou to prevent pregators from  confusin thenselves.

Maria Luiza Aguiar -1703

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The phenomenon of bioluminescence is a chemical
reaction generated by an enzyme that works as a survival mechanism for several organisms worldwide.  Among these organisms are some mushrooms, which emit a bright light with a greenish tint.  According to some researchers, it would be responsible for attracting insects that disperse the spores from the fruiting of some fungi.

Currently, the highest incidence of bright mushrooms occurs in Japan. On Mesameyama Island, in Ugui, small points of light cover tree trunks and moist soil throughout the region.

A BBC Brasil report revealed that there are 71 species of fungi that emit light, and 12 of them are present in Brazil.  Despite everything, science has yet to unravel the chemical process that allows the fungus to produce light.
Marina 1701

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Fluorescent amphibian
Unlike bioluminescence, fluorescence does not happen in dim environments. "The frog's molecules absorb light of a certain wavelength, excite themselves and re-emit light of another color with less energy, which in this case is sky-green," Faivovich told AFP. The researcher explains that, in the species, the origin of fluorescence is due to “a combination of the emission of compounds from the skin and lymph glands - excess blood fluid - which is filtered by the pigment cells of the skin, which in this species is translucent ”.

To verify that the phenomenon is natural of Hypsiboas punctatus and not a consequence of captivity, the researchers analyzed other specimens of the species and verified the luminescent property in all of them, which is very rare in terrestrial vertebrates. "Fluorescence in natural organisms is very common in aquatic species, and more or less usual in some insects, but it has never been reported scientifically in amphibians"

MARIA LUIZA LAMBERT 1701

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Graceful and nearly transparent, this jelly has long, delicate tentacles and she is the most influential bioluminescent marine organismo . It can expand its mouth when feeding to swallow jellies more than half its size. When disturbed, it gives off a green-blue glow because of more than 100 tiny, light-producing organs surrounding its outer bell. This jelly is harvested for its luminescent aequorin, used in neurological and biological experiments to detect calcium.
Kingdom: animalia
Phylum:cnidaria
Class: hydrozoa
Order: leptothecata
Family:aequoreidae
Genus: aequorea
Species:victoria

Henri vieira de Albuquerque -1701

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althougth little know, this type of jellyfish is very abundant all over the word, constituing a large proportion of tha biomass of the plankton unlike other jellyfish, they do not bite and produce bioluminescence as a defense machanism
Ancient gelatinous animals, which were shaped like Christmas trees, were protected by hard spiny skeletons and had no tentacles, unlike most of their closest relatives today. This is at least what a recent study published in Science Advances by researchers at the University of Geosciences in Beijing suggests. For the research, six combed jellyfish fossils were analyzed which, despite the popular name, belong to the phylum Ctenophora and not to Cnidário.
Clara Menezes Rangel
1701

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The firefly squid (Watasenia scintillans), also commonly known as the sparkling enope squid is a species of squid in the family Enoploteuthidae, genus Watasenia. These tiny squid are found on the shores of Japan in springtime during spawning season, but spend most of their live between 200-400 meters.They are bioluminescent organisms and emit blue light from photophores.

GABRIEL TAVARES FERNANDES SOARES TURMA 1701

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This sea creature, a crustacean whose length varies between 8 and 70 mm is among the most important animals in the Antarctic food chain, as it is a great source of food for many other predatory animals such as seals, penguins and birds. The krill has numerous organs that can give off a yellow-green light for about 3 seconds at a time. It is said that this crustacean lights up to avoid predators from the depths, becoming confused and mixing with the brightness of the sky and the ice on the surface.

Maria Clara Agostinho
1703 <3

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The firefly is that little insect that lights up gardens and forests. They live in temperate and tropical environments and more than 2000 species of them have been discovered. Fireflies glow due to the chemical processes that occur in your body caused by the consumption of oxygen. This process releases energy and that later turns it into cold light, this light is emitted by the organs below your abdomen and can have different colors such as: yellow, green and red.

Hariel Logan
1701

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COMB JELLYFISH
Although little known, this type of jellyfish is very abundant in the seas around the world, making up a large proportion of plankton biomass.  They are very strange, and although some have the form of jellyfish (and that is why they are grouped in this family) others look like flattened worms.  Unlike other jellyfish, they do not bite and produce bioluminescence as a defense mechanism.  Many comb jellyfish have a single pair of tentacles that let a kind of luminous vein through.

MARIA CLARA CRUZ CAMPOS 1703

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Is the most common and popular. With your body it can create a scenario full of bright light. Because your body contains fluorescent protein, photo-proteins and other bioluminescent proteins. Jellyfish radiates bright light at night when they feel irritated or  to attract their prey that is certainly mesmerized, but its beauty. Gabriela Possato 1701

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Seahorses are characterized by having an elongated head, with filaments reminiscent of a horse's mane,and by exhibiting mimicry similar to that of a chameleon, being able to change color and move the eyes independently of each other. They swim with their bodies upright, moving their fins quickly. Some species can be confused with marine plants, corals or sea anemones.

JÚLIA VALIANTE GUEDES 1701

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the sea anemone, despite looking like a plant, is an invertebrate animal that is stuck on reefs or rocks. The nickname sea anemone comes from its similarity to flowers, the sea anemone has more similarities to a human being than our eyes can see, they are the simplest animals of which we have knowledge of a system nervous, Genetically it is almost as complex as a human being. Despite being an invertebrate animal, the genome of some species of sea anemones has only two thousand genes

LUCAS TRAJANO FERNANDES 1703

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This sea creature, a crustacean whose length varies between 8 and 70 mm is among the most important animals in the Antarctic food chain, as it is a great source of food for many other predatory animals such as seals, penguins and birds.  The krill has numerous organs that can give off a greenish-yellow light for about 3 seconds at a time.  It is said that this crustacean lights up to avoid predators from the depths, becoming confused and mixing with the brightness of the sky and the ice on the surface.

anna julia 1701

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Also known as meduza, Jelly fish is a marine animal invertebrate composed of a gelatinous substance which involves a internal structure, from which several tentacles come out. Most of them live in salt waters. They glow in the dark! It does not happen to all but many jellyfish  have bioluminescent organs, which makes them shine, being a weapon to distract their predators. This can be done because your  body contains fluorescent protein,photo-proteins. Jellyfish radiates bright light at night when they feel a little irritated or as a methood of attracting their prey
Giovanna Avila Silva
1703

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the jellyfish it`s an animal that is stay to tht surface.According to klaus [a colaborator].ocean is filled with animals that glow in the dark:75% of the species are fluorescent
Fluorescent animals ”, such as fireflies or some living waters are not exceptions to nature. According to a bioluminescence study, published in the scientific journal of Nature, the ocean is practically full of animals that glow in the dark.
The research analyzed the amount of bioluminescence (ability to emit light) in dark waters

heitor pires 1703

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The Jellyfish it is one of the most well-known and popular of this luminous group, besides being also one of the most spectacular. With your body, the jellyfish, you can create a scenario full of bright light. This can be done because your body contains a fluorescent protein, photo-proteins and other bioluminescent proteins. Jellyfish radiates bright light at night when they feel a little irritated or as a method to attract their prey and they are certainly mesmerized by its beauty. Jellyfish are one of the most intriguing beings in the animal kingdom, they have many different shapes and colors and vary in size.
Júlia Constantino Nunes
1703

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The lantern fish, also known as Symbolophorus barnardi, is a fish that lives in deep and salty water, reaching up to 1,500 meters deep during the day, moving closer to the surface only at night. [1] Its name derives from its ability to produce light, emitted by small organs called photophores. [2] This fish is, on average, 12 centimeters long Sampling through deep trawl indicates lantern fish account for up to 65% of all biomass fish in the high seas. In fact, lanternfish are among the most widely distributed, populous and diverse of all vertebrates.                 ANA BEATRIZ VENANCIO LOPES 1703

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Fireflies are common names for coleopteran insects.  Its scientific name Lampyridae.
In fireflies, the luminous organs are located on the lower face of the 2nd or 3rd abdomen that precede the last one, like those of the fireflies found on each side of the basal part of the pronotum. This location of the luminous organs and also the existence or not of flashing  light classifies these insects within the two families mentioned.
These luminous organs are present in both male and female, and in females the emission of light is greater.
The light emitted by fireflies is the result of a chemical reaction that occurs between two substances present in the insect's body: luciferin and oxygen.  This phenomenon is known as bioluminescence.
Bioluminescence is the phenomenon carried out by fireflies that allow them to emit light.  This luminosity occurs because there is a chemical reaction between a substance called luciferin, present in this insect, which, when released into the air, is oxidized by molecular oxygen.
They light up for: adult insects "light up" when they want to be available to potential partners.  The patterns of light can vary according to each species - some stay on for a long time, others blink.
Both males and females use light to attract a partner and communicate during court.
Their larvae feed mainly on vegetables and other minor insects.
In addition to fireflies, other animals have bioluminescence, especially marine animals that live in the depths of the ocean.
YASMIN ARAUJO-1703

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Fireflies are insects that enchant many people around the world because they manage to glow in the dark, many people are impressed by this.
What makes fireflies glow in the dark is that the lightning is a consequence of the activation of uric acid crystals, which in turn forms a kind of reflective layer that makes the insect`s body light.This layer combines oxygen, adenosine triphosphate, an enzyme called luciferase and a pigment known as luciferin
Fireflies glow to expel predators and both male and female  can glow in the dark
Davi Castanho 1701

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The firefly is an insect seen in many places on summer nights. It is recognizable because it emits light signals at night with its phosphorescent organ located in the lower abdomen.  From the same family as the beetles, it is also called firefly.

This light is produced by chemical reactions made with the substances luciferin and nuclear oxygen.  From Portuguese fire-fighter or fire-fighter, it was the name given to the animal that had luminescent glands on the back of the body

PEDRO ALONSO
1703