Difference in body size (or sexual dimorphism) between males and females is common across the animal kingdom. One of the most extreme examples of sexual dimorphism is found in the cichlid fish species ...

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 ...

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 ...

Rodrigues, Raoni Rosa, Carvalho, Lucélia Nobre, Zuanon, Jansen, and Del-Claro, Kleber. 2009. "Color changing and behavioral context in the Amazonian Dwarf Cichlid Apistogramma hippolytae (Perciformes) ...

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 analysis of fossils in sediment cores from Lake Victoria, Africa, reveals that a group of cichlid fish rapidly diversified as the lake got larger and provided new ecological niches, whereas the ...

Cuckoo catfish may be the worst parents ever. Rather than raising their own cannibalistic offspring, they force other fish species to raise them in their own mouths. But how do they do it? New ...

Africa’s deepest freshwater lake holds a dizzying array of animals, including hundreds of species of cichlid fish found nowhere else in the world. They crowd the waters of Lake Tanganyika, with scales ...