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 ...

The prehistoric sea creature Dunkleosteus terrelli had the strongest jaws ever for a fish, according to a recent study. Artists’ renderings of the animal show an iron-jawed leviathan, sometimes with a ...

Cleveland’s iconic prehistoric sea monster—the 14-foot-long armored fish Dunkleosteus terrelli—just got a lot stranger. This marine apex predator lived some 360 million years ago, had razor-sharp bone ...

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 ...