When we are sitting on our front porches or taking an evening stroll, the soft glow of a firefly adds a mysterious beauty to the summer night air.

But did you ever wonder why fireflies glow? The answer is that fireflies use their flash to communicate with each other. More specifically, they use it as a sort of visual mating call.

What is even more dazzling than a single firefly, is a whole group of fireflies, glowing in sync. Have you ever witnessed this impressive display?

http://www.youtube.com/watch?v=sROKYelaWbo

Some scientists propose fireflies synchronize their flashing patterns to enhance the visibility of their mating calls.

Read More:

• Fireflies' Flashy Mates Have to be in Sync (NewScientist)
• Male Fireflies Flicker in Sync to Catch a Female's Eye (Discover)

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