Can we examine the teeth of living fish and other vertebrates in detail, repeatedly over time, without harming them? Previously, small animals often had to be euthanized to obtain precise information, ...

Not all creepy things go bump in the night -- some of them swim. While you might think of fish as harmless little dudes hanging out in your aquarium, there are some ...

University of Washington scientists have made a remarkable discovery: real teeth growing on the forehead of a deep-sea ratfish. This finding sheds light on the unique adaptations in fish anatomy, ...

A fish with large, human-like teeth was caught off the coast of North Carolina last week. It was a sheepshead fish brought in by Nathan Martin, and photos of it were posted to Facebook by Jeanette’s ...

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An 11-year-old Oklahoma native has reeled in an exotic catch — one that is most certainly not native to Oklahoma. Charlie Clinton of Edmond, Oklahoma, caught an exotic, invasive fish known as the Pacu ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Charlie Clinton, 11, of Edmond, Oklahoma, caught an exotic, invasive fish known as the Pacu, a fish that is not native to Oklahoma. Oklahoma Department of Wildlife Conservation/Twitter An 11-year-old ...