About 445 million years ago, Earth’s oceans turned into a danger zone. Glaciers spread across the supercontinent Gondwana, ...

Scientists have long treated mass extinctions as events locked deep in the fossil record. That framing now feels less distant. New research points to patterns that resemble earlier biological ...

A massive ice age wiped out ocean life 445 million years ago, reshaping ecosystems and setting the stage for jawed fish ...

About 445 million years ago, Earth nearly wiped out life in the oceans. Glaciers spread across the supercontinent Gondwana, ...

An ancient shark older than forests still glides through deep oceans today. Its strange teeth, slow life cycle, and ...

A devastating ice age wiped out most marine life, yet new research reveals how this ancient disaster unexpectedly paved the ...

During these waves of mass extinction, most vertebrate survivors were confined to refugia, or isolated biodiversity hotspots ...

Fossils reveal dinosaurs were flourishing in diverse ecosystems right up until the asteroid impact ended their reign. Their abrupt extinction reshaped Earth’s ecosystems and set the stage for mammals ...

A fragmented comet was thought to have exploded over the Earth almost 13,000 years ago and could explain a massive ...

A spectacular fossil trove on the Arctic island of Spitsbergen shows that marine life made a stunning comeback after Earth’s greatest extinction. Tens of thousands of fossils reveal fully aquatic ...

The collapse of tropical forests during Earth’s most catastrophic extinction event was the primary cause of the prolonged global warming which followed, according to new research. The Permian–Triassic ...