For many of us, seeing fireflies light up the night is one of the more pleasant signs that summer has arrived. But what's behind their sparkling flights? And what can we do to bring more of these ...

The fireflies' annual synchronous light show in the woods of Great Smoky Mountains National Park is something to behold. It's a sight you don’t want to miss, even if you weren’t one of the lucky ...

Where to see fireflies this early summer is drawing attention as nature’s light show returns across the country. This summer’s firefly displays bring out rare syncs and glowing swamps that turn quiet ...

Fireflies are lighting up summer evenings across the U.S. Northeast, putting on dazzling shows in backyards and city parks. There's no official count, but experts say a particularly wet spring may ...

CHICAGO — Beatriz Swanson can remember the first time she saw the blinking glow. She was 10 years old, growing up in Mexico, when two fireflies appeared in front of her, floating away before she could ...

Fireflies are lighting up the Chicago area this summer, with a particularly strong showing thanks to a wet spring—but some species across the U.S. are in decline. Scientists warn that habitat loss, ...

Of all the intriguing insects out there, the Photuris firefly has always been one of my favorites. This “femme fatale” uses ...

NEW YORK (AP) — Fireflies are lighting up summer evenings across the U.S. Northeast, putting on dazzling shows in backyards and city parks. There’s no official count, but experts say a particularly ...