What caused the Permian mass extinction? How long did it last and how many species did it eliminate? The Permian mass extinction was the most devastating of the Big Five mass extinction events in the history of life on earth, eliminating 96% of the species. Scientists attribute it to the sudden warming of the climate as a result of the increased concentration of carbon in the air. Read about the Permian mass extinction, its causes and effects on the animal kingdom.
Permian Mass Extinction: A Still-Unexplained Calamity
