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Firefly - Wikipedia
Firefly | Insect, Lightning Bug, Life Cycle, Nocturnal, …
Fireflies - National Geographic
Firefly.org | Firefly & Lightning Bug Facts, Pictures, Information
Firefly facts and photos - National Geographic Kids
The Illuminating Science Behind Fireflies | Smithsonian
Fireflies - National Wildlife Federation
Facts About Fireflies & Lightning Bugs | Firefly.org
How do fireflies get their glow? We finally have some answers.
Fireflies: How and why they light up - EarthSky