Everyone knows the tiger, the panda, the blue whale, but what about the other five to thirty million species estimated to inhabit our Earth? Many of these marvelous, stunning, and rare species have ...

Measuring 10 feet (3 meters) long and weighing in at more than 400 pounds (180 kilograms), it's hard to imagine that the arapaima, the largest fish in the Amazon River basin, could ever go missing.

(UPI) -- The natural body armor of the South American arapaima fish is so tough that it can withstand the piercingly fierce bite of a piranha without a problem. With its streamlined body and flat head ...

Researchers working in the murky waters of the Amazon River in Brazil have discovered a new species of giant fish. The arapaima is an air-breathing fish that ranges between six and seven feet in ...

Locals discovered three "giant" fish, suspected to be arapaima, floating dead on Truoc Dong Lake in Da Nang city.

As the world’s largest freshwater fish, the arapaima, is being targeted by poachers in Brazil, while members of Indigenous communities are doing their best to protect it. The Paumari Indigenous ...

It's a matchup worthy of a late-night cable movie: put a school of starving piranha and a 300-pound fish together, and who comes out the winner? The surprising answer -- given the notorious guillotine ...

Here's a question - if piranhas are so ferocious and will attack anything, why aren't they the only fish in the Amazon? Well, in some cases, it's because other fish possess bite-proof armor. The ...