An incredibly rare albino orca was caught on camera leaping out of the ocean, leaving an impassioned wildlife photographer “shaking with excitement.” Japanese freelance photographer Noriyuki ...

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 ...

Mike Bock Visitors can get up close to arapaima at the Smithsonian National Zoo's Amazonia exhibit. Reaching up to 10 feet (3 meters) long and weighing 440 pounds (200 kilograms), arapaima are ...

The arapaima, a slow-moving, torpedo-shaped fish should be easy prey for a pack of the carnivorous fish but it isn’t—thanks to the set of scales it’s evolved over millions of years.

Arapaima, once thought to be extinct, has reappeared in Brazilian rivers. Unfortunately, this is not good news, as the species poses a threat to local ecosystems. Biologists are raising the alarm ...