A new study sheds light on how these reptiles become “mummies” and paints a picture of what these ancient animals looked like ...

Some 67 million years ago, in what is now known as Slope County, North Dakota, an adolescent duck-billed dinosaur was killed and chewed up by various predators and scavengers. The Edmontosaurus left ...

(CNN) — Spiders are not well represented in the fossil record. Their soft external skeletons don’t typically preserve well — except at a few exceptional sites around the world. There is one remarkable ...

Trilobites lived in all Earth’s oceans for hundreds of millions of years. They had tough exoskeletons, which made them more likely to fossilise. The detailed fossil record of trilobites shows how ...

Opalized ammonite fossils are some of the most unique and spectacular paleontological specimens. They were formed through a geological process known as opalization, wherein organic material from ...

LAWRENCE, Kansas— A couple hundred million years ago, an ocean covering Kansas teemed with prehistoric life. Yet for millennia, Kansas has been a dry, sometimes even dusty, place. The ocean is long ...

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