WATCH LIVE | GEMA Hurricane Helene Briefing At 11:30 A.M.

This week we investigate the beautiful phenomenon of bioluminescence.

Why Do Fireflies Have Blinky Bottoms? Be Smart

Premiered July 03, 2017
Why Do Fireflies Have Blinky Bottoms?

Nearly all life on Earth is ultimately powered by light. But many creatures have learned how to make their own. This week we investigate the beautiful phenomenon of bioluminescence. From blinking fireflies on summer nights to glowing deep sea monsters, prepare to learn about the chemistry of living light.

About the Program

Be Smart

Join Joe Hanson as he explores curiosity and illuminates the science behind… well, everything.

Here’s your ticket to stream.

Stream the best of public television on demand with GPB Passport: MASTERPIECE dramas and mysteries, NOVA, Ken Burns documentaries, Finding Your Roots and more. Binge full seasons, get early access to new episodes before they air on television and catch up on programs you missed with this powerful donor benefit from GPB!