See the full episode at http://video.pbs.org/video/1485211138When Mount St. Helens erupted in 1980, every living thing in the blast zone was buried beneath 300 feet of avalanche debris. Then, to everyone's surprise, life began to bloom again. On Tuesday, May 4 at 8PM ET/PT NOVA presents a pioneering look at the interplay between biology and geology that may help scientists predict future volcanic eruptions.http://www.pbs.org/wgbh/nova/sthelens/
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