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

The Earth has suffered five mass extinctions. Human activities are now accelerating climate change and the threat of the "Sixth Mass Extinction". We analyze the past to consider what we should do.

Humans have wiped out hundreds of species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass extinction” event ...

Tens of thousands of years ago, the first wave of a worldwide tsunami now known as the “Sixth Extinction” swept across the ...

The planet is on the precipice of the sixth mass extinction event. Unlike previous mass extinctions caused by natural events such as asteroid collisions, volcanic activity, and climate change, the ...

Shocking research has warned that humans are driving extinctions at a scale not seen since the mass extinction of the dinosaurs some 66 million years ago. The researchers from the University of York, ...

Investigating the 'overkill' hypothesis, this piece explores how human-wildlife conflict may have driven megafaunal ...

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 ...