an animal that has been extinct for more than half-a-billion years.” The discovery not only sheds light on the evolution of movement and body organization but also adds context to how complex ...

A half-a-billion-year-old spiny slug had shed light on the origins of animals like oysters and octopuses, researchers have said. Researchers including scientists from the University of Oxford have ...

The discovery of a massive crater formed by the impact of a meteorite more than 3.5 billion years ago is changing the way ...

A few years later, in 1907, he reasoned that since he knew the rate at which uranium breaks down (its half-life), he could ... put Earth's age at 2.2 billion years. This was a dramatic increase ...