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 ...

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.

The predators, which were made famous in the “Jurassic World” franchise, likely arose at least three times Riley Black - Science Correspondent In 1780, before the word “paleontology” had even been ...