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World's Biggest Stingray

Rivers aren't exactly where you'd expect to find giant 1,000-pound monsters, but that is exactly where Dr. Zeb Hogan plans to research giant freshwater rays. His journey starts in the Northern Territory of Australia, where Zeb searches for whiprays, a rare species that was properly identified only in the past few years! After catching mostly bull sharks, Zeb turns his attention to Thailand's giant freshwater stingray. On the Mae Klong River, he battles a 385-pound behemoth for hours.