Hundreds of millions of years before dinosaurs, the tallest things on land were not trees or animals but towering, trunk-like organisms that looked like something from science fiction. Around 400 ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish to the formidable, pointed teeth of sharks. But fish evolved from toothless ...

Scientists have uncovered an enormous hidden archive of plant DNA that has endured for more than 400 million years. By comparing hundreds of plant genomes, researchers identified more than 2.3 million ...

Scientists have uncovered new clues about some of Earth’s earliest fish, shedding light on the ancient origins of vertebrates that eventually moved onto land. By reanalyzing mysterious fossils from ...

A digital reconstruction of a Praearcturus gigas scorpion, which scientists believe lived about 415 million years ago Experts have identified a giant scorpion that lived about 415 million years ago, ...