The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth.

This is a map showing the range of the Permian Basin and the distribution of oil wells in the region. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted ...

Research shows how Earth's climate suddenly warmed 10°C, transforming ecosystems and causing the worst mass extinction in history.

For months I'd been on the trail of the greatest natural disaster in Earth's history. About 250 million years ago, at the end of the Permian period, something killed some 90 percent of the planet ...