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), ...
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 ...
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