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 ...

There are concerned, overprotective parents, and then there are cichlid fish. After a male cichlid fertilizes the female’s eggs, she holds her entire brood of embryos inside her mouth for two weeks ...

Cichlids are a striking type of freshwater fish with over 500 species. They're usually found in warmer regions and in various bodies of water, including ponds, rivers, lakes, and streams. Most species ...

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 ...