The remarkably tough scales of a huge air-breathing fresh water fish in the Amazon Basin named "Arapaima gigas" were the subject of a recent study led by Robert Ritchie of Berkeley Lab's Materials ...

The Amazon and its tributaries are home to almost one tenth of the world’s freshwater fish biodiversity, 2500 species being recorded. The giant fish Arapaima gigas is one of the most emblematic of ...

If you liked this story, share it with other people. In February, Florida officials identified the body of an arapaima (Arapaima gigas) that had washed ashore from the Caloosahatchee River. An expert ...

Measuring 10 feet long and weighing in at more than 400 pounds, it's hard to imagine that the arapaima, the largest fish in the Amazon River basin, could ever go missing. But these huge fish are ...

"Arapaima have high economic, cultural and scientific value, but their diversity has been overlooked for too long," Stewart said. Four species of arapaima were recognized in the mid-1800s, but in 1868 ...

Oct. 16 (UPI) --In a newly published study, scientists uncovered the secrets of the scales that protect Arapaima gigas, a large Amazonian fish, from the powerful bites of piranhas. Arapaima gigas is ...

Newswise — A new species of the giant fish arapaima has been discovered from the central Amazon in Brazil, raising questions about what other species remain to be discovered and highlighting the ...