The biggest mass extinction in Earth history some 251 million years ago was preceded by elevated extinction rates before the main event and was followed by a delayed recovery that lasted for millions ...

WASHINGTON -- An ancient version of global warming may have been to blame for the greatest mass extinction in Earth's history. In an event known as the "Great Dying," some 250 million years ago, 90 ...

Researchers have discovered a clue in Italian limestone that helps explain a mass extinction of marine life millions of years ago, and may provide warnings about how oxygen depletion and climate ...

Researchers have found a chemical clue in Italian limestone that explains a mass extinction of marine life in the Early Jurassic period, 183 million years ago. Volcanic activity pumped out CO2, ...

Scientists don’t call it the “Great Dying” for nothing. About 252 million years ago, upward of 80% of all marine species vanished during the end-Permian mass extinction – the most extreme event of its ...

It’s sad when living things go extinct. That means they’re gone forever. I think about extinct unicorns all. the. time. My friend Jodi Rosso told me that a mass extinction is when a huge number of ...

A recent study published in Communications Earth & Environment provides a stark warning about the ocean’s future: the looming oxygen crisis may threaten key marine species, including the crucial ...

While the gradual consumption of oxygen on Earth presents a worrisome scenario, this process is going to take a few billions of years. In the course of this highly unlikely destiny, planetary ...

In today’s state of overwhelm, it’s easy to spend more time consumed with the present and the future than contemplating the events of the past. This constant forward motion can, at times, become ...

Volcanic eruptions in Siberia 251 million years ago may have started a cascade of events leading to high hydrogen sulfide levels in the oceans and atmosphere and precipitating the largest mass ...

Italian limestone collected from the Mercato San Severino section in southern Italy contains molecular traces of ancient oceanic chemistry. An analysis of these rocks helps explain how early Jurrasic ...