The 10-foot-long arapaima was quickly disappearing in Brazil until local communities stepped in to save it—and themselves. A close-up view of an arapaima from the Brazilian Amazon shows its ...

The arapaima is the largest fish in the Amazon River basin. These incredible freshwater fish can measure 10 feet (3 meters) long and weigh more than 400 pounds (180 kilograms).

The arapaima, because of its varied and voracious appetite, is a threat to native Florida wildlife. It is also capable of producing hundreds of thousands of eggs during its lifetime.

“Arapaima have a majestic presence,” DeSoua says. “Before handling arapaima I would see them rolling and watch in awe: their large bony head rising up for air and gently entering back in the ...

The arapaima scales are marvels of evolutionary armament. They're made of two layers. The inside is a flexible collagen, while the surface layer is mineralized.

The arapaima, pirarucu, or paiche (Arapaima gigas) is a South American tropical freshwater fish. It is one of the largest freshwater fishes in the world.

The arapaima is known to be aggressive, even toward its own kind. It can reach up to 440 pounds (200 kilograms) and 10 feet (3 meters) in length. More for You.

Arapaima are “among the largest known freshwater fish species with sizes up to 14 feet and 440 pounds,” the Florida Fish and Wildlife Conservation Commission reports.

The secret to Arapaima's success lie in its intricately designed scales, which could provide "bioinspiration" for engineers looking to develop flexible ceramics. Advanced Search.

The arapaima, because of its varied and voracious appetite, is a threat to native Florida wildlife. It is also capable of producing hundreds of thousands of eggs during its lifetime.