Name: Glowing life in an underwater world
Uploaded: 2010-04-19T08:30:00Z
Duration: 17 min 2 s
Description: Some 80 to 90 percent of undersea creatures make light -- and we know very little about how or why. Bioluminescence expert Edith Widder explores this glowing, sparkling, luminous world, sharing glorious images and insight into the unseen depths (and brights) of the ocean.

Some 80 to 90 percent of undersea creatures make light -- and we know very little about how or why. Bioluminescence expert Edith Widder explores this glowing, sparkling, luminous world, sharing glorious images and insight into the unseen depths (and brights) of the ocean.

Edith Widder: Glowing life in an underwater world

Glowing life in an underwater world

At 880 feet deep, a marine biologist discovers the ocean's brilliance, revealing a world where 80-90% of creatures emit light.

Bioluminescence, evolving over 40 times in history, underscores its critical survival role, from luring prey to evading predators.

Deploying an 'Eye-in-the-Sea' camera, a researcher captures a six-foot, unknown squid, underscoring the ocean's uncharted mysteries.