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

A chemist explores why the fossilized shells of ammonites, squid-like marine animals that vanished with the dinosaurs, are so ...

These fossils, which include teeth, bones, and remains of ancient marine reptiles, amphibians, bony fish, and sharks, come ...

Scientists in Argentina discovered the oldest known long-necked dinosaur, Huayracursor jaguensis, revealing a much earlier ...

Dozens of nations are pushing for a roadmap to phase out oil, coal and gas at the UN climate summit in Brazil. But a bloc of powerful oil-producing countries and industry lobbyists are putting up a ...

A new extinct flying reptile species has been discovered in fossilized dinosaur vomit. Known as "regurgitalite," the remains ...

Researchers discovered a prehistoric ecosystem filled with giant marine reptiles, revealing an unparalleled level of food web complexity. Predators that dominated the oceans 130 million years ago were ...

A newly discovered ancient sawshark species in Chile has been named after Chainsaw Man’s Pochita, blending science and anime ...

"This discovery extends the known range of Tenontosaurus farther southwest than previously documented," Ricketts said. "Until now, fossils of this species were known primarily from localities farther ...

Using this method, researchers were able to push the ability to find molecular traces in much older rocks. The state of the ...

A ridiculous but instructive thought experiment involving deep time, plate tectonics, erosion and the slow death of the sun ...

AI-powered chemical analysis uncovered faint biological fingerprints in some of Earth’s oldest rocks, pushing back the origins of oxygen-producing life.