80-million-year-old fossils revealed that this dyrosaurid species began to diversify millions of years earlier than previously thought, starting with evolutionary changes in its bite.

Scientists excavating the ruins of Pompeii have discovered a construction site left frozen in time by the eruption of Italy's ...

Concrete was the foundation of the ancient Roman empire. It enabled Rome's storied architectural revolution as well as the ...

A groundbreaking study reveals a hidden system beneath Egypt’s oldest pyramid—suggesting ancient engineers used a forgotten ...