The most catastrophic extinction event in the history of the earth was the Permian Extinction 250 million years ago. Scientists believe this was caused by a massive half million year eruption in the Siberian traps that lead to wave after wave of toxic gases devastating life on the planet beginning with sulfur dioxide followed by carbon dioxide, hydrogen sulfide and methane. Yet, some animals found sanctuaries where they could survive. Written by
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The intro of each episode (bar the final one) features the presenter Tony Robinson summarizing the specific disaster as it spectacularly destroys London behind him. See more