British paleontologist Thomas Halliday reveals how extinction is intimately linked to evolution in his book, Otherlands. He chronicles 16 extinct ecosystems over the past 520 million years to show ...

Tyrannosaurus rex might be the most famous meat-eater of all time, but it turns out it wasn’t the only way to be a terrifying ...

The Cretaceous-Paleogene mass extinction, occurring approximately 66 million years ago, represents one of the most dramatic biotic crises in Earth’s history.

The narrative of life on Earth is marked by a continual ebb and flow, characterized by the emergence and extinction of ...

Around 66 million years ago, Earth endured a mass extinction event that marked the end of the Cretaceous and the start of the Paleogene period. Roughly 75% of all species vanished, including every ...

Although separated by hundreds of millions of years and entirely different triggers, the Great Dying and today’s Sixth Mass ...

Citation: “The end-Cretaceous mass extinction restructured functional diversity but failed to configure the modern marine biota.” Edie, Collins, and Jablonski, Science Advances, May 21, 2025. Funding: ...

"Fossils also show a change in the shape of snake vertebrae in the aftermath, resulting from the extinction of Cretaceous lineages and the appearance of new groups, including giant sea snakes up ...

The Cretaceous mass extinction event occurred 66 million years ago, killing 78% of all species, including the remaining non-avian dinosaurs. This was most likely caused by an asteroid hitting the ...

The mass extinction at the end of the Cretaceous Period is perhaps the most famous in history. Over 66 million years ago, a 15-kilometer-wide asteroid struck what is now Mexico and changed life on ...

For many years, scientists have been puzzled as to why the ancestors of today's birds survived the mass extinction at the end of the Cretaceous, 66 million years ago. Part of that mystery involved ...