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

(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 ...

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 ...

Ancient fossils unearthed in Morocco reveal parasitic worms burrowing into mollusc shells approximately 480 million years ago ...

Fossil hunters in Kenya have uncovered footprints on an ancient shore that are teaching us something entirely new about how ancient hominins lived.

Paleolithic hunters built mammoth traps in what is now Mexico some 14,700 years ago. An unknown sea creature left footprints in sand some 550 million years ago, making them the oldest known footprints ...

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 ...