How the Permian-Triassic Mass Extinction Almost Killed Life on Earth
The Great Dyings - Miniseries

DESCRIPTION

Despite life's many trials, it has always managed to pull through. But there was one time when it almost didn't. 252 million years ago at the end of the Permian period, life came the closest it ever has to being wiped out completely. This is the story of the true Great Dying.