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

One of Earth’s earliest mass extinctions wiped out most ocean life during a sudden global ice age. From the ruins, jawed vertebrates survived, diversified, and transformed the course of evolution.

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 ...

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

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

Some 445 million years ago, life on Earth was forever changed. During the geological blink of an eye, glaciers formed over ...

A rapid climate collapse during the Late Ordovician Mass Extinction devastated ocean life and reshuffled Earth’s ecosystems.

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

Whether a species has just freshly emerged, or it has been around for millions of years does not dictate its vulnerability. This has been the assumption of an old debate on whether species' age plays ...

More than 250 million years ago, life on Earth faced its most devastating crisis — a global event so severe that it wiped out nearly three-quarters of life on land and an even larger share in the ...

For a long time, the prevailing theory was that dinosaurs were already in decline before the Chicxulub asteroid struck Earth approximately 66 million years ago, leading to the extinction of about 70% ...