This video examines how introducing a Mosasaurus radically disrupted the game’s balance. Its size, strength, and speed ...

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

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 ...

This video explores how Mosasaurus evolved into a marine predator so dominant that it effectively “broke the game” of ...

Meet Mosasaurus, a gigantic carnivore that swam seas around the globe 80 million to 66 million years ago. On June 12, you can see one doing its best Shamu impression in Jurassic World. Few people on ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. About 72 million years ago, a mosasaur the size of a modern great ...