As a younger man, Joe Cicero saw "thousands and thousands of them." Swarms of fireflies put on a soundless fireworks show for him every summer in southern Arizona. The sight of the fireflies flashing ...

Watching fireflies is one of the singular pleasures of a warm summer night. Many of us have fond memories of watching them flit about and even catching them in a jar to observe their flashes more ...

GATLINBURG, Tenn. (AP) — The annual lottery to see the synchronous fireflies of the Great Smoky Mountains National Park may be canceled this year due to the coronavirus, but a Smokies-based nonprofit ...

This is the time of the year the Great Smoky Mountains National Park would be buzzing - and glowing - with the spectacular natural phenomenon of synchronous fireflies and the hordes of humans who come ...

Rainy, damp weather along the eastern United States in summer 2025 has one upside: Fireflies love it. "Fireflies and their prey (snails, slugs, worms) need moisture, so years with high rainfall, ...

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Fireflies in a forest at night in Tennessee. Haoxiang Yang On an early June evening, physicist Raphael Sarfati breathed hard as he lumbered up a dense forest trail in Great Smoky Mountains National ...

You can believe your eyes because lightning bugs really are coordinating their nightly glows. By Sabrina Imbler Swarms of synchronous fireflies are rather like melting ice, or at least that’s how ...

The June air was thick with summer heat. Mosquitoes rose in clouds around us, testing our resolve while we gathered our cameras and sensors. We walked into the wetland, down the unmarked path until ...