Fireflies communicate with a "language of light" that scientists still don't completely understand. James Lloyd and Marc Branham of the University of Florida, Gainesville, discuss unique flash patterns and times for some of the 2,000 types of fireflies that light up the summer nights.
Produced by Emily V. Driscoll
Filmed by Sakuma Fumio , Rei Ohara, Stavros Basis
Narrated by Ira Flatow
Additional Stills by Joyce Gross, Bruce Marlin, Shutterstock,
Music by Audio Network
Special Thanks to Marc Branham, "Brilliant Darkness" movie funded by the Zoological Lighting Institute,
James Karl Fischer, Luke Groskin, Misa Kimura, James Lloyd, The Zoological Lighting Institute