Fish can change their teeth quickly, which speeds up their evolution. Cichlids in African lakes show the fastest ...

Read More: Does Evolution Take Millions of Years or Does it Happen in Sudden Bursts? Among the fishes, there are a few options for teeth: Some fish sport "simple" conical teeth, while others sport ...

Researchers discovered two new species of snake eels in Vietnam, one with "robust" teeth and one with "sharp" teeth.

A new study shows that the ease with which these fish can develop a biological innovation (complex teeth), not just the innovation itself, enables this rapid evolution. (Photo of Nimbochromis ...

Adaptations of the teeth and jaws that allow the fish to adapt to a wide range of food sources and habitats are thought to be a factor in their success. Fish, including cichlids, have either ...

During their surveys, the team found several unfamiliar-looking brown eels, the study said. They took a closer look at the ...

A new study shows that the ease with which these fish can develop a biological innovation (complex teeth), not just the innovation itself, enables this rapid evolution. It’s not what you do ...

Complex teeth with multiple cusps in an African cichlid fish. The cichlid fish of Africa's Great Lakes have formed new species more rapidly than any other group of vertebrates. A new study shows that ...

Pictures of the 'black demon' fish is going viral on social media as it has reportedly been photographed in daylight for the first time. Officially called Melanocetus Johnsonii, this eerie looking ...