Freshwater salinization is rising due to pollution and ocean intrusion, threatening water supplies, agriculture, and infrastructure.

Free-flowing rivers are uniquely important providing healthy floodplains, recreation, thriving freshwater habitats, abundant fish stocks, among others. However, these rivers—and all that depends on ...

Few freshwater fish can match the size of the Mekong giant catfish, which can exceed 10 feet and weigh over 660 pounds. Native to the Mekong River, this gentle giant feeds on plankton rather than ...

While there is an ocean of research on the environmental impacts of marine plastic pollution, less is known about plastics that accumulate in freshwater rivers and lakes. Chen was recently awarded a ...

A major reason why scientists know so little about giant freshwater rays is because they hide at the bottom of the river. They’re not considered a good food fish in Southeast Asia, so they’re ...

WWF works to sustain the natural world for the benefit of people and wildlife, collaborating with partners from local to global levels in nearly 100 countries.

Gathered round Martha’s Pond in New Jersey’s iconic Pine Barrens, students in Claude Epstein’s environmental science class ...