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 ...

Dr. Scott explains all about the prehistoric marine species Mosasaurus. Dr. Scott explains all about the prehistoric marine species Mosasaurus. Dinosaur Train is available to stream on pbs.org and the ...

Mosasaurus and other mosasaurs ruled the seas for millions of years. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Mosasaurs went extinct 65.5 ...

The mosasaur was the apex predator of the seas when dinosaurs roamed land. Geologists working in Mississippi recently stumbled upon an incredible find: the fossil of an ancient marine apex predator.