Researchers find that shifts in Earth’s orbit can trigger abrupt climate changes, even in warm periods without ice sheets.

Now, evidence suggests that some of these spiral-shaped species did manage to persist after all. Recent analysis of ammonite ...

The fossil was originally found in New Mexico that year. Then, in 1935, scientists classified it as a Kritosaurus, which, ...

Earth’s slow axial wobbles—known as precession cycles—do not just shape long-term climate trends. A new study led by ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Tenontosaurus fossils found in West Texas, the southernmost record of the dinosaur and a key to the Early Cretaceous.