Photo Gallery: Bear-Size Catfish, Half-Ton Stingrays Among World's ''Monster'' Fishes

Photo Gallery: Giant Catfish, Half-Ton Stingrays Among World's
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Name: Giant freshwater stingray (Himantura chaophraya)

Maximum Size: 197 inches (500 centimeters), 1,323 pounds (600 kilograms), body diameter 95 inches (240 centimeters)

Habitat: Mekong River Basin, Southeast Asia

Endangered Status on IUCN Red List (2006): Vulnerable

Population Size: Unknown

Major Threats: Overfishing and pollution

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—Photograph by Zeb Hogan/WWF Conservation Science Fellow/National Geographic Emerging Explorer
 

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