In the wide, sandy stretches of Brazil’s Araguaia River, the piraíba, South America’s largest catfish, is a cornerstone of ...

The UN assessment of the state of migratory freshwater fish revealed an 81% decline in the last 50 years.

Discover the alarming trends in freshwater migratory fish species declines, with an 81 percent population drop since 1970.

A new species of Amazonian fish, Pyrrhulina punctata, has been discovered in Peru, revealing previously unknown biodiversity ...

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