The Southeastern Michigan Aquarium Society held an auction Saturday, where hobbyists spent hours bidding on colorful fish to ...

The oscar fish, a unique-looking fish from South America ... They're considered one of the most intelligent species of freshwater fish, and many of them reorganize their tank.

Fishkeeping has gained popularity as a calming and relatively low-maintenance hobby. Among the diverse choices, the Archer ...

These unique fish have the nickname "iridescent shark catfish," a seemingly ill-suited comparison for a toothless, freshwater fish. The nickname arises from its tendency to swim close to the ...

An unexpected catch during a fishing trip reveals the freshwater drum, a unique North American species. Often overlooked, ...

"Not only does this fossil provide a unique snapshot into the environment ... shows a parasite attached to the tail of the fish. It's a juvenile freshwater mussel called a glochidium.

The giant freshwater stingray may be the world’s largest freshwater fish. It’s also cloaked in mystery. No one is sure how many giant stingrays are left, which habitats they prefer ...

Australian scientists have discovered an ancient freshwater fish fossil with its stomach contents remarkably preserved. In a ...

“We’ve already lost seven of our state’s unique freshwater fish species to extinction, and it’d be a shame for California to lose any more,” said Jeff Miller, a conservation advocate at the Center.

“We’ve already lost seven of our state’s unique freshwater fish species to extinction, with reckless water policies, unprecedented fires and climate-driven drought taking a toll on many fish in ...