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Kelly Rakow Sutherland untangles tethers attached to her fellow divers during a blue-water dive. The tether system is used to ensure that divers don’t become disoriented or drift away when exploring the featureless—and seemingly bottomless—environment. Rakow is using blue-water diving and an underwater video camera to study the movement and feeding of barrel-shaped, gelatinous organisms called salps off the Pacific coast of Panama at the Liquid Jungle Lab. (Photo by Andrew Gray, UC Santa Cruz)[back]
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