Sharks have been around for hundreds of millions of years, appearing in the fossil record before trees even existed. But what did they evolve from, are they 'living fossils', and how did they survive ...

The end of the Cretaceous Period saw one of the most dramatic mass extinctions Earth has ever seen. Find out what brought about the end of the dinosaurs and many other animals too. The fossil record ...

This enables reliable estimation of the timeline of the end-Permian mass extinction,” Li wrote in an email. According to Cui, knowing or understanding the pH change of oceans and the spikes in global ...

O'Connor adds, "This way, we were able to create a detailed 'temperature timeline' for the years ... 30 ka before the Cretaceous–Paleogene mass extinction, Science Advances (2024).