The Mekong Giant Catfish (Pangasianodon gigas) holds the distinction of being the largest purely freshwater fish currently living on Earth. These remarkable fish can grow to lengths of up to 10 feet ...

But last week it surfaced, literally, as fishers hauled a 13-foot-long giant freshwater stingray, weighing almost 400 pounds, out of the Mekong’s murky depths.