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), ...

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 unique ...

National Geographic Explorer João Campos-Silva has long been fascinated by the arapaima, since before it sprung back from near extinction just over a decade ago. The precarious state of the world’s ...

Real fishing adventure! Matt Allen and his guides face the raw power of a thrashing Arapaima in the heart of Guyana’s Essequibo River. / Tactical Bassin' Life is either a daring adventure or nothing ...

Two of Washington's biggest fish have died in recent days, it was announced Monday. And a third is ill, with an uncertain future. The fish that died are arapaimas, which were living and swimming in ...