By Stefan Lovgren I first began covering the Mekong River in Southeast Asia almost two decades ago, encountering fish so immense they seemed almost mythical: giant freshwater stingrays weighing as much as a grand piano, and grizzly bear-size Mekong giant catfish. No other river on Earth harbors so many colossal fish. Their fates reveal something […] The post Can the Mekong, the World’s Most Productive River, Endure Relentless Strain? appeared first on Circle of Blue.