The Philadelphia Water Department's freshwater mussel hatchery is a pioneering effort to restore native mussel populations.

Fossilized fish ear stones—known as otoliths—can reveal far more than previously thought. In a recent study, a team of ...

Deep in the forest a man uses ancient skill and pure craftsmanship to build a breathtaking aquarium for red fish complete ...

Photos taken by blackwater divers offered a new glimpse into the early life stages of marine fishes and their interactions ...