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

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 ...

A recent study published in Earth Science Reviews examines how both the shine and excellent preservation of fossils discovered at Germany’s Posidonia Shale is not the result of pyrite (aka fool’s gold ...

The fossil was tiny— about the size of a modern sparrow— but it had features in common with a larger fossil bird called ...

Ancient fossils unearthed in Morocco reveal parasitic worms burrowing into mollusc shells approximately 480 million years ago, pushing back the known timeline for parasitism by 60 million years. This ...

All that glitters is not gold, or even fool’s gold in the case of fossils. A recent study by scientists at The University of Texas at Austin and collaborators found that many of the fossils from ...

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 ...