When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Mosasaurs went extinct 65.5 million years ago in the same mass extinction event that wiped out ...

Imagine swimming in the ocean and suddenly spotting a creature larger than any shark, faster than any human can sprint, and more vicious than any predator alive today. Meet the Mosasaurus, a marine ...

This video explores how Mosasaurus evolved into a marine predator so dominant that it effectively “broke the game” of prehistoric ocean life. Scientists highlight the creature’s immense size, ...

At the end of the Cretaceous Period, a type of giant reptile called mosasaurs occupied and dominated oceanic food webs. Mosasaurs had long bodies and were related to both snakes and monitor lizards.

Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater rivers alongside dinosaurs and crocodiles. A massive tooth found in North ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Nearly 70 million years ago, mosasaurs were the stuff of ...

Giant reptiles, masters of the oceans more than 66 million years ago, swimming in rivers? A recent discovery in North America raises this surprising hypothesis and changes our perception of mosasaurs.