When she started researching how stress influences fish learning and memory, McMaster University graduate Catalina Costiuc was hopeful she could also address the idea that fish have bad memories.

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 ...

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.

Cichlid fishes have undergone a mind-boggling degree of speciation. New research is revealing features of their genomes that primed them to diversify so spectacularly Africa's Lake Victoria is home to ...

Cichlid fish are seen sucking up sand and spitting it out in a pile to impress females and intimidate rivals with their 'sandcastles'. The mounds of sand, called bowers, are each subtly different in ...

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 ...

In the second-largest lake in Africa, fish evolution is taking place at an explosive rate. Why? Scientists are diving into the question Ben Crair Lake Malawi formed in a valley where the African ...

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 ...

Researchers have found that male African cichlids vocalize during courtship, and that females' sensitivity to these sounds increases when they are ready to mate. African cichlids enjoy an alien, ...

Africa's Lake Victoria is home to one of evolution's greatest experiments. In its waters, what began as a single lineage belonging to the cichlid family of fishes has since given rise to a dazzling ...