Drum fish are given their unique name not because they have drums in their bodies but because they let out croaker sounds produced by their swim bladders. There are around 275 species of drum 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 the ease with which these fish can develop a biological ...

The transition to eating cooked instead of raw meals was seen as a key development in human evolution, according to a newly published study. The question of “the first meal” has long been debated, but ...

The Viperfish’s Teeth Are Larger Than Its Mouth These formidable teeth cause the viperfish’s lower jaw to protrude forward. The teeth sit outside of the mouth, interlocking, with two large lower fangs ...

One fish, two fish. Green fish, blue fish. Outer teeth, inner teeth. These fish grow a lot of teeth. By Annie Roth If there is one place you don’t want to stick your finger, it’s the mouth of a ...