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), ...
Arapaima gigas is a big fish in a bigger river full of piranhas, but that doesn't mean it's an easy meal. The freshwater giant has evolved armor-like scales that can deform, but do not tear or crack, ...
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 ...
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 ...
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 ...
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 ...
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