The brilliant iridescent hues found in ammolite come from tiny air gaps in the fossils’ layers, a new study finds.

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

Over 500 million years ago, the Cambrian Period sparked an explosion of skeletal creativity. Salterella, a peculiar fossil, ...

What do fossilized leaves, an asteroid, and Florida sinkholes have in common? Dr. Kirk Johnson is Sant Director at the Smithsonian Institution, National Museum of Natural History, and has the answers.

A remarkable fossil from Brazil unveils Tainrakuasuchus bellator, a medium-sized predator from the Middle Triassic. This ...

For fossil hunters, the thrill is often in the hunt. For 9-year-old Molly Sampson, her prehistoric shark tooth discovery along a Maryland beach is considered the find of a lifetime. And the dinosaur ...

Scientists in Brazil identified marine worms that made at least some trace fossil burrows called Bifungites. By Priyanka Runwal If you know where to look, you can find dumbbell-shaped fossils in rock ...

In a world that looked nothing like today’s, long before the rise of the dinosaurs or even the first trees, giant living towers stretched skyward from the Earth’s surface. Some reached heights of 26 ...