The Permian Extinction was one of the most significant events in the history of our planet, one that took place over ...

Homo sapiens, a sentient and potentially sapient species, is bringing about a mass extinction of life on Earth. Yet scientists are quibbling over whether it’s the sixth mass extinction in the history ...

Mass extinctions clearly upend the status quo. Now, our ocean floors are dominated by clams burrowed into sand and mud, the ...