In bony fish the swim bladder primarily serves for buoyancy. Moreover, in many species it also possesses acoustic functions: it plays a role in sound production and improves hearing in numerous ways.

A jewel fish (Hemichromis bimaculatus) that is reintroduced into a familiar aquarium compartment where it had remained before during two hours, is dominant over a conspecific of similar size that had ...

David Ceilley and his son Connor weren't surprised last week when they pulled two clear-plastic fish traps from Owl Creek in East Lee County. Total catch: 21 African jewelfish (also known as jewel ...

From rare cichlids to unexpected surprises, this tiny stream is a wild aquarium in disguise. Russia responds to Trump sanctions threat 'Why would you even want to go?': Readers react to the ...

"Sound vibrations are transmitted to the inner ear via anterior extensions of the swim bladder or via bony ossicles", the biologist Tanja Schulz-Mirbach explains how swim bladders may serve for ...