In the first and only reconstruction of ocean pH ever carried out, new research from the University of St Andrews and the ...

The research adds to the growing body of evidence that higher temperatures, rather than a giant space rock hitting the planet, led to the greatest mass extinction in history. Prehistoric extinction ...

Roughly 252 million years ago, Earth experienced its deadliest known extinction. Known as the Permian–Triassic Mass ...

Learn about two major asteroid impacts from 3.5 million years ago that may not have had lasting environmental effects.