A mosasaur tooth has been found at one of the most famous Late Cretaceous fossil sites in the world. That means the famous ...

Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater ...

Mosasaurs were enormous reptiles best known for ruling ancient oceans more than 66 million years ago, but new evidence suggests some also lived in rivers. Scientists reached this conclusion after ...

Experts think the creatures adapted to river environments in the final million years before they became extinct.

At the end of the Cretaceous Period, a type of giant reptile called mosasaurs occupied and dominated oceanic food webs.

Learn how chemical clues reveal a mosasaur was hunting in freshwater rivers as the Cretaceous seaway receded.

Until now, these terrifying giant aquatic reptiles with a bulky skull and powerful jaws were thought to be sea-dwelling ...

Universal Studios Hollywood’s upcoming Jurassic World - The Ride will feature appearances from some of the biggest, hungriest dinosaurs from the franchise, and we just got our first look at the ...