River catfish are known to inhabit Tonle Sap Lake in ... These unique fish have the nickname "iridescent shark catfish," a seemingly ill-suited comparison for a toothless, freshwater fish.

The lake sturgeon, with its sleek shape and rows of bony plates on its sides, looks a bit like an armored torpedo. These freshwater giants ... help the fish to locate bottom-dwelling prey, such ...

DESCRIPTION: Freshwater mussels are bivalve mollusks that have a two- valved hard shell, a soft body with respiratory, digestive and reproductive organs, and a muscular foot for locomotion, burrowing ...