Did you know fireflies are disappearing across America? Those summer nights filled with blinking lights weren’t just beautiful — they were a sign of a healthy ecosystem. And they’re becoming rarer every year. Fireflies don’t vanish overnight. They disappear slowly, silently, and mostly unnoticed. Here’s what’s happening: • Light pollution disrupts mating. Fireflies rely on darkness to communicate. Artificial outdoor lights confuse their signals, so many never reproduce. • Pesticides kill them be

What makes fireflies light up at night? Find out why these insects glow and what their bioluminescent signals mean: | TED-Ed