In the final segment of the series, NPR's Howard Berkes reports on one of the most unusual and hazardous professions--diving for sea cucumbers. An exotic delicacy in Asia, sea cucumbers cling to the bottom of Puget Sound, where divers brave frigid waters, strong currents and gradual bone necrosis to bring them up. No one knows much about these creatures, and measures to protect them have limited the fishery to a few determined divers.
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