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

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 ...

Scientists know that dinosaur fossils are millions of years old by dating radioactive elements in rocks that the fossils were found near or in. Soft tissue can exist in fossils for longer than 4 ...

Some well-preserved sea life fossils formed 183 million years ago didn't form in a no-oxygen environment as researchers previously thought, according to new analysis of the fossils by a team including ...

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 ...

A recent study found that many of the fossils from Germany's Posidonia shale do not get their gleam from pyrite, commonly known as fool's gold, which was long thought to be the source of the shine.

How scientists are looking 4.6 billion years into the past. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists have discovered ancient ...

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 spot ...