“Our existence is probably not an evolutionary fluke,” says Jennifer Macalady, a study co-author and microbiology professor ...

Primeval fish that were thought to be "living fossils," largely unchanged since the time of the dinosaurs, are actually evolving dramatically — and they evolved faster when Earth's continents ...

Among living fossil fish ... into what the Earth was like an incomprehensibly long time ago. As the ancestors of all vertebrates, they also provide important clues about the evolution of many ...

Fish at the other end of Earth, in the Arctic ... This is evidence that quite separate, independent episodes of molecular evolution occurred, with the same functional results.

Over 390 million years ago, the ancestors of modern land animals said, “Feet before fins,” and took their first steps on earth ... fish from the Late Devonian period—when their evolution ...

A new study by Ohio University found an important fossil of the oldest known modern bird, which lived in Antarctica when ...