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 with ...

The vampire squid is a creature straight out of a gothic horror film. It lurks in the deep-sea abyss, cloaked in dark, webbed ...

The legendary Kraken has terrified sailors for centuries, appearing in myths as a colossal sea monster. Its story blends ...

Great white sharks have long stood in our collective imagination as the ultimate predator in our oceans. These sizable sharks ...

Ancient Antarctic Sea Monster May Have Laid This Football-Size Egg. A 68 million-year-old egg the size of a football — the largest soft-shelled egg on record and the second largest egg ever discovered ...

Learn about Dunkleosteus, an ancient apex predator that ripped apart large fish with sharp bony blades that lined its mouth.

The iconic, armored, 14-foot-long Dunkleosteus was something of an "evolutionary oddball,” a new study has revealed.

This mouth structure wasn’t an evolutionary relic, however. It was actually a specialized feature that allowed them to thrive. It now appears Dunkleosteus boasted a head and jaw more reminiscent of a ...

Ohio’s ancient sea monster, the Dunkleosteus terrelli, is revealed in new clarity by a recent study that shows just how ...

The historian Procopius described how a creature called Porphyrios terrified sixth-century sailors for 50 years. But what was it? A sixth-century Byzantine mosaic depicts an amphibious monster—though ...

The elusive 'vampire squid from hell' has just yielded the largest cephalopod genome ever sequenced, a monster clocking in at more than 11 billion base pairs – more than twice as large as the biggest ...