Why and how does Firefly (jugnu) Glow at Night ?

Why and How does Fireflies (jugnu) Glow At Night ?

-Knowledge_Expert

Fireflies undergo a Chemical reaction inside their body that allows them to light up. This type of light production is oftenly known as bioluminescence. The method by which Fireflies glow is a good example of bioluminescence. When oxygen combines with Calcium, adenosine triphosphate (ATP) and chemical luciferin in the presence of some substances like luciferas, bioluminescent enzyme, there is production of light takes place. There is an interesting thing that unlike bulb produce heat along with light, Fireflie's light is cold light that doesn't loose large amount of energy in the form of heat. This also prevents the burning of firefly due to heat.

The Fireflies themselves control the start and stop of light ommision, by adding oxygen to chemicals as to produce light. 

This all process take place in light organ. If there is presence of oxygen in light organ, light glows and if not then no light production. The Fireflies don't have lungs present in their body. In order to transport oxygen from out to inside the body cells there is a series of tubes called trancheols. 

Fireflies appear to be lighted for many of remarkable reasons. The larva species produce short glow and are normally active at night. Fireflies produce defensive steroids in their bodies that make them unpalatable to predators. As adults, many Fireflies have their flash patterns unique to their species and are used to identify themselves as well as to discriminate between the members of opposite sex. Female Fireflies choose mates depending upon flash patterns characteristics. Those with more flash rates are more attractive to female ones.