It’s the longest river in the world, full of unique creatures, weaving and winding 3,700 miles across lush rainforests and ...

Vast journeys, among world’s great wonders, found to be under threat as freshwater fish populations crash by 81% ...

Hatchlings talk inside their shells to time their birth, but the roar of massive barges may soon drown out their sound.

From the Andes to the Atlantic and back again, the dorado catfish reveals the connectivity of one of the world’s largest ...

Deep in the vast rivers and flooded forests of the Amazon Basin, there lives a fish that appears to be prehistoric in both ...

Over the last half century, populations of fish migrating through the world's rivers have dropped by 81 percent, according to ...

Scientists using drones discovered over 40,000 giant river turtles nesting along the Guapore River in the Amazon, revealing ...

Hidden beneath the surface of the world’s rivers, some of Earth’s great animal movements unfold – migrations that rival, in sheer biomass, the famous mass movements of zebra and wildebeest across the ...

From the Amazon to the Mekong, migratory freshwater fish underpin food security for millions, but over 300 species need ...

Credit: Zeb Hogan One of Earth’s greatest migrations is vanishing underwater—and almost no one is paying attention. The world ...

A few days ago in Brazil’s Pantanal, I watched a pair of jaguars resting in tall grasses, their bodies almost disappearing ...

Some of the longest, most important migrations of species on Earth are happening beneath the surface of the world's rivers ...