A research team at Memorial University has discovered that the first animal extinction event on Earth was even bigger than the meteor-impact that ended the age of dinosaurs. New data published in ...

About 445 million years ago, Earth’s oceans turned into a danger zone. Glaciers spread across the supercontinent Gondwana, and shallow seas shrank fast. Ocean chemistry also shifted hard. In what ...

Rapid changes in marine oxygen levels may have played a significant role in driving Earth's first mass extinction, according to a new study led by Florida State University researchers.

Around 250 million years ago, one of Earth's largest known volcanic events set off The Great Dying: the planet's worst mass extinction event. The eruptions spewed large amounts of greenhouse gases ...

Learn how a new genomic study reveals that squid and cuttlefish survived a mass extinction in deep-sea refuges before rapidly diversifying into modern species.