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), ...

Conservation efforts in the Brazilian Amazon have brought a giant fish called the arapaima back from the verge of extinction, National Geographic reported. A decade ago, the arapaima, which can grow ...

The Gateway Center event room was filled March 26 to hear Dr. Donald Stewart, a professor in the Department of Environmental and Forest Biology, speak about his discovery of a new species of Arapaima ...

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 ...

A new type of giant Amazonian fish — one for which only a single species was known for more than a century — has been discovered in Brazil, scientists say. The fish is a new species of arapaima, which ...

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.

The Burmese python, green iguana and lionfish are, by now, well-known invasive species that have established a dangerous foothold in Florida. But a fearsome new invasive predator has emerged in the ...

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 ...