Quick Take Cleveland’s famous sea monster, Dunkleosteus terrelli, was recently discovered to have a more typical jaw size ...

It’s time to release the kraken! This is the legendary sea monster. It’s massive, terrifying and hungry. Thankfully, it’s ...

In the late 1970s and early 1980s, the Chesapeake Bay gained a mystery. Multiple sitings of an unknown creature stirred concern and intrigue that a sea monster lurked in Maryland and Virginia’s waters ...

The mix of features offers new clues to how plesiosaurs navigated prehistoric oceans. The tip of a right flipper of the new plesiosaur fossil, with two scales along the trailing edge. A new study ...

A gigantic sea monster from the era of the dinosaurs has been discovered and named after a Norse snake. The 24-foot-long creature is a new species of mosasaur—aquatic, carnivorous lizards that lived ...

The Pacific Northwest's enigmatic waters are home to an elusive sea serpent of legend: Cadborosaurus Many say that the waters of America’s Northern coasts are home to an elusive sea serpent of legend.

For centuries, seafaring folks' reports of terrifyingly huge waves that appeared out of nowhere were dismissed as fantasy by those on dry land. Now, the existence of these "real sea monsters" that ...

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 ...

What do you do when a mysterious sea serpent is prowling warm Gulf waters? You catch it, chop it up and make it into soup. That's the lesson learned in a segment in Nashville writer Allen Sircy's new ...