Cichlids are one of the largest and strangest groups of vertebrate fish — fish with backbones — on Earth. They’re popular as pets and farmed in aquaculture, and scientists have been studying them ...

Nature always finds a way, but those ways aren’t necessarily pretty. In fact, in regions with plenty of resource competition, ...

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 ...

The new species L. rubidorsalis is named for the brilliant red fin on the middle of its back. Credit: Credit: Michael Pauers The new species L. rubidorsalis is named for the brilliant red fin on the ...

The rapid formation of 500 different species of fish in a single lake, each with specialized ecological roles, resulted from a small but genetically diverse hybrid population. Scientists show the ...

Scuba divers found some “large”-eyed lake creatures off the coast of Malawi and discovered two new species, a study said and photos show. Photo from Getty / iStockphoto Plunging into a large lake in ...

Different beak and jaw shapes are illustrative examples of how animal species have adapted to different food sources. In a ...

Pictured on the left is the Nile perch, a voracious predator introduced into Lake Victoria by humans to satisfy meat demands in the 1950s. On the right, several species of endemic cichlids that were ...