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 ...

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 ...

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 the most recent study, researcher Donald Stewart with SUNY College of Environmental Science and Forestry (ESF), describes an entirely new ...

Four species of arapaima were recognized in the mid-1800s, but in 1868, Albert Günther, a scientist at the British Museum of Natural History, published an opinion that those were all one species, ...

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 ...

The arapaima or pirarucu, native to the Amazon. (Jeff Kubina via Wikipedia [CC BY-SA 2.0 (https://creativecommons.org/licenses/by-sa/2.0)]) The arapaima or pirarucu ...