How do Fireflies Glow?

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  Fireflies or lightning bugs make light within their bodies. This process is called bioluminescence and is shared by many other organisms, mostly sea-living or marine organisms.
      To do this, the fireflies contain specialized cells in their abdomen that make light. In this cell When oxygen combines with calcium, adenosine triphosphate (ATP) and the chemical luciferin in the presence of luciferase, a bioluminescent enzyme, light is produced.    
     As air rushes into a firefly’s abdomen, it reacts with the luciferin, and a chemical reaction gives off the firefly’s familiar glow. This light is sometimes called “cold light” because it generates so little heat. 
   Some experts think the firefly’s flashy style may warn predators of the insect’s bitter taste.Male fireflies also light up to signal their desire for mates – and willing females attract the males with flashes of their own.But not all the flashing of fireflies is motivated by romance.So the next time you see a firefly, keep in mind that its flickering isn’t just a wonder of the night. It’s also a unique love language … that can be deadly.

   

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