How the Earth Was Made

Earth's Deadliest Eruption (2x11)

Air date: Feb 09, 2010

A look back 250 million years ago when a massive volcanic eruption, (in what is now Siberia), spewed lava one mile thick over an area the size of Texas and caused intense climatic change that killed 95% of the life on the planet; paving the way for the next dominant species – the dinosaurs.