Have a spacious aquarium with plenty of room and a high-capacity filter? Consider adding some large fish to your freshwater aquarium. A large aquarium typically starts at 200 gallons, but some of ...

The Rio Grande cichlid is a native member of the Cichlid family of fishes, which also includes the exotic tilapia, according to the TPWD. The distribution of the Rio Grande cichlid in Texas appears to ...

The biological family Cichlidaea is one of the most fascinating examples of animal evolution on Earth. Convict cichlids are a widespread, well-known species within this unique group. Convict cichlids ...

"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 ...

Scientists have uncovered evidence of fish mating with species different from their own—a process that can lead to the creation of several new species. For a study published in the journal Nature ...

The favoured direction of the cichlid's attack corresponds to its laterally asymmetric head shape: It prefers to attack the prey fish either from the right or from the left side, depending on the ...