CLEVELAND, Ohio — Deep in the basement of the Cleveland Museum of Natural History, they're telling fish stories. "It was this big!" exclaims Dr. Caitlin Colleary, with arms outstretched. The ...

Dunkleosteus terrelli may have been the world's first apex predator. The force of its bite was remarkably powerful: 11,000 pounds. The bladed dentition of this 400-million-year-old extinct fish ...

CLEVELAND, Ohio - An ancient sea creature well known to Clevelanders was far more unusual than previously thought, according to new research by Case Western Reserve University and others. Dunkleosteus ...

It was big. It was mean. And it could bite a shark in two. Scientists say Dunkleosteus terrelli might have been "the first king of the beasts." The prehistoric fish was 33 feet long and weighed up to ...