The protracted drought in the Delaware River watershed is affecting fish and wildlife populations, both positively and negatively, writes Octavia Feliciano ...

New research shows about a quarter of animals living in rivers, lakes and other freshwater sources are threatened with ...

In a river of southern Africa, a “large”-mouthed creature swam along the rocks looking for its next meal. Something about the “slender” animal caught the attention of snorkelers — and for good reason.

Academics, conservationists, nonprofits, government agencies—and one passionate, retired scientist—are working to rebuild ...