Recent decades have seen fireflies become scarce in certain areas, and scientists warn that some have experienced concerning ...

Learn more about how some firefly species may use pheromone receptors along with bioluminescence to attract partners.

Scientists are reporting a global decline in the firefly population. But conservation efforts and some favorable weather may be helping the insects.

“We’re fully confident that this is not the last generation to see fireflies, unless something really catastrophic happens,” ...

Fireflies are harbingers of sweltering midsummer heat, but the regional renaissance is tied to conditions in the spring.

Beatriz Swanson can remember the first time she saw the blinking glow. She was 10 years old, growing up in Mexico, when two ...

Pesticides, habitat loss, and light pollution are threatening firefly populations worldwide, but even in urban areas, some ...

The New Canaan Land Trust Firefly Sanctuary has two things fireflies need: darkness and woodlands — both of which are ...

Ottawa backyards sparkled with firefly activity last summer. This year, they're largely absent — and data gaps are leaving ...

Claims of fireflies, also called lightning bugs, going extinct or the current generation being the last to see them often circulate on social media, and while their populations are in decline like ...

The flickering fields of summer nights are back. Fireflies, it seems, are abundant again. Throughout the region, people are ...

If you’ve noticed more fireflies dancing across your backyard this summer, you’re not imagining things. Experts report that 2025 has been a banner year for these glowing insects.