She believes that the Permian extinction was caused by acid rain following ... generating catastrophic events from global wildfires to climate change. But the Permian detectives are faced with ...

Travel back in time even further to around 250 million years ago, and the Great Dying – more formally known as the Permian-Triassic extinction event – wiped out members of all classes of life.

But this ancient event – known as the Great Dying ... alive at the time may have gone extinct during the end-Permian extinction. Although the volcanic eruptions theory seemed to be a plausible ...

Then 252 million years ago came the Permian-Triassic extinction event. This is the biggest extinction event our planet has ever seen, in which 70 per cent of species on land disappeared along with ...

At the end of the Permian some 250 million years ago, the worst extinction event so far with 96% of all known species lost. At the end of the Triassic some 201 million years ago, when 80% of all ...

Fossils from southern China provide evidence for a mass extinction during middle Permian time, 260 million years ago. The close association of this event with an outpouring of lava, initially into ...

But scientists debate if that’s sufficient evidence to conclude that Earth is undergoing a mass extinction event—or whether that’s even a helpful designation. After a year teaching an algorithm to ...

But occasionally, extinction rates have surged far beyond usual levels, driving mass extinction events that have reshaped the trajectory of life. After a year teaching an algorithm to differentiate ...

This graph plots extinction rates of marine animal families over the last 600 million years. The shaded band indicates the normal range of extinction rates, known as "background extinction.