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 ...

Arapaima gigas is a big fish in a bigger river full of piranhas, but that doesn't mean it's an easy meal. It's evolved armor-like scales that deform, but don't tear or crack, when a piranha -- which ...

A keystone species of the Amazon River ecosystem, the arapaima is a powerful predator known by many names. Mike Bock Reaching up to 10 feet (3 meters) long and weighing 440 pounds (200 kilograms), ...

Deep in the vast rivers and flooded forests of the Amazon Basin, there lives a fish that appears to be prehistoric in both size and appearance. The arapaima, also called the “pirarucu,” is one of the ...

A flurry of social media attention recently warned that the arapaima, the largest fish in the Amazon, is facing possible extinction. A study revealed that these river giants are already extinct in ...

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 ...

The arapaima, a giant Amazon river fish that can grow longer and heavier than a human adult, is at risk of extinction, according to a new study. Overfishing and errors in classification are believed ...

KUALA BERANG: A giant fish that supposedly caused the deaths of two men on Tuesday could have been the highly predatory and aggressive arapaima gigas. Fish biologist Dr Mohd Fadzil Suhaimi Ramli said ...

Arapaima gigas is a big fish in a bigger river full of piranhas, but that doesn't mean it's an easy meal. The freshwater giant has evolved armor-like scales that can deform, but do not tear or crack, ...