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: Arapaima (Arapaima gigas)

Maximum Size: 177 inches (450 centimeters), 441 pounds (200 kilograms)

Habitat: Amazon River Basin, South America

Endangered Status on IUCN Red List (2006): Data deficient

Population Size: Approximately 150,000, based on a 2004 study published in the journal Animal Conservation

Major Threats: Overfishing

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—Photograph by Arco Images/Alamy
 
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