Researchers in New Zealand have made what they believe is the first recording of a shark actively making noise.

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 ...

Among the fishes, there are a few options for teeth: Some fish sport "simple" conical teeth, while others sport "complex" cusped teeth. These differences allow them to survive in distinct habitats ...

He managed to hook one and, after reeling it in, was shocked to see the fish seemingly grinning at him with a "mouth full of teeth." Martin described the moment he caught the toothy fish ...

Fish like the Atlantic croaker (Micropogonias undulatus), part of the drum family of fishes (Sciaenidae), make sound by vibrating specialized muscles against their swim bladders. The grunts (family ...

The authors’ discovery of apparently cooked fish teeth would be the earliest documentation of the food preparation method by hominins, the scientists write in the study. Investigating this theory, the ...

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 ...