Some, like goldfish, can live for decades when given proper ... When it comes to choosing the best freshwater aquarium fish, ...

The giant freshwater stingray may be the world ... where their more commonly known relatives live. These ancient fish, little changed over many millions of years, can reach 16.5 feet long ...

Other mussels can jump up and clamp onto a fish’s face to expel their larvae onto its gills. • Worldwide there are 890 known freshwater mussel species, and 302 of those live in North America.