The Mystery of Eels

These serpentine sea dwellers can be found across the globe, and while they're prized as a delicacy and even revered in some cultures, we still know little about eels and their existence. Naturalist/author James Prosek chronicles the history of the sleek and sometimes fearsome-looking fish, the roles they play in the food chain, and how overfishing and construction could endanger their future, in this "Nature" installment. 60 min. Widescreen; Soundtrack: English Dolby Digital stereo; Subtitles: English (SDH).