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Fireflies or lightning bugs use specific flash patterns to signal potential mates. Their glow also lets predators know that they taste bad.

Firefly - Wikipedia

en.wikipedia.org/wiki/Firefly

The Lampyridae are a family of insects in the beetle order Coleoptera. They are winged beetles, commonly called fireflies or lightning bugs for their conspicuous use of bioluminescence during twilig...

Why fireflies light up | Earth | EarthSky

earthsky.org/earth/bugs-firefly-light

Jun 3, 2016 ... Bottom line: Why do fireflies light up? It's because of a chemical reaction between an organic compound in the fireflies' abdomens – called ...

How and why do fireflies light up? - Scientific American

www.scientificamerican.com/article/how-and-why-do-fireflies/

Fireflies produce a chemical reaction inside their bodies that allows them to light up. This type of light production is called bioluminescence. The method by ...

How do fireflies light up? | HowStuffWorks

animals.howstuffworks.com/insects/question554.htm

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 ...

Fireflies! 12 things you didn't know about lightning bugs | MNN ...

www.mnn.com/earth-matters/animals/stories/fireflies-12-things-you-didnt-know-about-lightning-bugs

Jun 25, 2014 ... Actually, let us restate that: it doesn't have fireflies that light up. ... Well maybe not the whole spectrum, but they do come in yellow, light red, ...

How Do Fireflies Glow? Mystery Solved After 60 Years

news.nationalgeographic.com/2015/07/150724-fireflies-glow-bugs-summer-nation-science/

Jul 24, 2015 ... Scientists have sussed out the chemical secret of these bright summertime beetles—and it may someday improve human health, a new study ...

Why do fireflies glow? | MNN - Mother Nature Network

www.mnn.com/earth-matters/animals/stories/why-do-fireflies-glow

May 7, 2013 ... So how do fireflies glow? Turns out it's not quite so magical after all, since it's the product of a complex chemical reaction going on inside their ...

What Makes Fireflies Light Up? - Live Science

www.livescience.com/32677-what-makes-fireflies-light-up.html

Jul 1, 2010 ... The faint eerie glow of fireflies is a summer night staple, but the ... But scientists do know what the flashes are used for: adult fireflies shine ...

www.ask.com/youtube?q=Why Do Fireflies Light up?&v=FCZS9s0f7nU
Sep 27, 2015 ... Ever wonder how/why some animals glow? The firefly and anglerfish are perfect examples! Explorium // A place for scientific exploration and ...