While light bulbs make our nights brighter, they are dimming the social lives, and survival rates, of some of nature’s natural light-makers: fireflies. A 2021 report found that 1 in 3 North American ...

Most people think of light as harmless. We switch on lamps after sunset, scroll through phones in bed, and keep rooms softly glowing till late. But research now shows that light at night may not be as ...