Scientists have long treated mass extinctions as events locked deep in the fossil record. That framing now feels less distant ...

For a long time, the prevailing theory was that dinosaurs were already in decline before the Chicxulub asteroid struck Earth ...

No other animal is as inexorably linked with extinction as the dodo, an odd-looking flightless bird that lived on the island of Mauritius in the Indian Ocean until the late 17th century. The arrival ...

The millions of species humans share the world with are valuable in their own right. When one species is lost, it has a ...