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Dying fish revealed Congo is world's deepest river

Dying fish revealed Congo is world's deepest river

Lamprologus lethops, a fish that lives in the lower Congo River, is pale and blind like fish that dwell in caves deep underwater. (Credit: Courtesy of Melanie Stiassny) SAN FRANCISCO — A mysterious case of dying fish in the lower Congo River helped scientists discover that this body is the deepest river on the planet. It's also a place where raging