Add Yahoo as a preferred source to see more of our stories on Google. Dunkleosteus ruled a restless Devonian ocean, where armor met innovation. Here’s how modern science is rewriting the story of this ...

CLEVELAND—About 360 million years ago, the shallow sea above present-day Cleveland was home to a fearsome apex predator: Dunkleosteus terrelli. This 14-foot armored fish ruled the Late Devonian seas ...

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 ...

Roughly 360 million years ago, a shallow sea covered what is now Cleveland, Ohio. In its depths lurked Dunkleosteus terrelli, a 14-foot armored fish armed not with teeth, but with sharpened bone ...