Fireflies' Love Language Is Their Butts

On warm nights, city lots and rolling rural meadows come alive with the blinking code of fireflies. But it’s not just how they’re flashing that’s interesting—it’s why. Each species of firefly has its own light language to find a mate. Host Jessica Ware helps us decode firefly flirting and meets a high school researcher on a quest to understand how we can keep our summers twinkling with fireflies.