Salzburg’s cichlids can reach about 2 inches long in the wild but “tend to grow much larger in captivity,” the study said. They have “large” heads, “large” mouths and “widely ...

Nature is fascinating and here’s proof of it. These 10 animals defy norms by giving birth through their mouths ...

Fish, including cichlids, have either "simple" teeth, basically cone-shaped pegs, or "complex" teeth with multiple cusps that can adapt to feed on different prey. Peoples spent two years examining ...

Correct choices were rewarded with a food pellet. Three of the eight stingrays and six cichlids successfully learned to complete this task. After the fish were successfully trained, the researchers ...