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 ...

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This coverage is made possible through a partnership between Grist and BPR, a public radio station serving western North Carolina. It’s firefly season in the Blue Ridge. As the sun goes down, they ...

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 ...

If summer nights seem a little brighter in Michigan this year, you’re not imagining it. Favorable weather conditions in recent years have led to an explosion of firefly activity. Researchers say ...

It’s twilight on a warm May evening at the Congaree National Park in Hopkins, South Carolina. A wooden boardwalk weaves through cypress knees, and towering loblolly pines. A viewing platform holds the ...

Banner image: Fireflies dance over a field near Sawhill Ponds in Boulder, Colorado. (Credit: Peleg Lab) Owen Martin steps carefully through the knee-high grass growing up around a long-abandoned ...

In Taiwan’s forests, researchers discovered a clever hunting trick by the sheet web spider Psechrus clavis. Instead of immediately devouring captured fireflies, the spiders allow them to glow in the ...