Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An enigmatic skull ...

Fans of dragons from the fantasy genre will be excited about new discoveries related to the Dinocephalosaurus orientalis. This dinosaur is from the Triassic Period, about 240 million years ago. It ...

Geologists have uncovered the fossil of a mosasaur, an ancient aquatic predator, in Mississippi. Often referred to as a “sea dragon” due to its imposing size and fearsome appearance, this prehistoric ...

For millions of years, the land we now call the United States has been home to towering prehistoric beasts, strange sea creatures, and lush ancient forests that no longer exist. Evidence of this ...