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 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 ...
Join us this April 27 for an exclusive event for donors. Our experts will share analysis and recent data, and answer your questions about projections for 2026. As the world’s largest freshwater fish, ...