NOVA: Creatures of Light
Preview | 30s
"Creatures of Light" – Take a dazzling dive to explore how and why so many ocean creatures light up, revealing an undersea world where creatures flash, sparkle, shimmer or simply glow. (Also Thu. 2/4 at 3 a.m.; Sun. 2/7 at 1 p.m.)
Aired: 02/03/16
Expired: 02/03/16
