Whether you’re new to fish keeping or want to add members to an established aquarium, catfish are always an excellent choice.

Mussel shells provide living space for insects and plants, and empty shells serve as nesting sites for small fish like darters. Unfortunately, for all their allure, freshwater mussels are the most ...

This story appears in the April 2017 issue of National Geographic magazine. Hundreds of millions of people worldwide would lack their prime source of protein without freshwater fish. Yet the lakes ...

Native to Southeast Asia, a tiny freshwater fish packs a surprising punch with ... it momentarily stuns nearby females. For a frame so small, the ability to produce sounds of such high amplitudes ...

The documentation of salmon-eating northern pike in Southcentral estuaries, a North American first, shows a new way for the ...

A pike is a freshwater fish that lives in lakes and rivers. Pike mainly hunt fish and frogs but will sometimes eat small mammals and birds. Salmon hatch from eggs in freshwater rivers and live ...

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 ...