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 ...

Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers. This is shown by new research based on analyses of a mosasaur tooth found in ...

Mosasaurus was among the largest and last of the sea-dwelling mosasaurs. Dmitri Bogdanov via Wikimedia Commons under CC0 There hardly was a more fearsome family of seagoing carnivores than the ...

(CNN) — An enormous sea snake from Norse legend that was fathered by the trickster god Loki and grew big enough to circle the globe is now the namesake for a different type of “monster” — a newly ...

No aquatic reptiles today can match mosasaurs, ocean-dwelling creatures of the Cretaceous period that looked something like a cross between a whale and a shark. Now, a group of researchers have ...

Researchers have identified a new species of mosasaur -- an 18-foot-long fish-eating monster that lived 80 million years ago. Researchers at the University of Cincinnati identified a new species of ...

In 2015, paleontologists unearthed a new mosasaur species, Jormungander walhallaensi, in North Dakota. This 24-foot-long "sea dragon" lived 80 million years ago and bridges the evolutionary gap ...