This fish must have a good dentist. A Brazilian businesswoman Paula Monteira went viral earlier this week after she shared images of a fish sporting human-like teeth. The video, which has more ...

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

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 ...

They have “short” heads with “small and sharp” teeth, wrinkly skin and “pointed” tails ... after “three doctors with the last ...

But shark teeth come in many shapes and sizes. They can tell us how these fish live and evolved. All sharks have teeth, but what may surprise you is that they don’t all have sharp, triangular teeth.

Its teeth are designed not so much to grab or slice fish but to prevent them from escaping once the coelacanth has sucked them into its gaping maw. Beneath the chin lie large, bony plates.

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 ...