Nature's life forces, as well as its winds, eruptions, quakes, avalanches, freezes, etc., is immensely powerful. I recall being allowed to study revegetation on the freshly-erupted Mt. St. Helens. It was more than 10 years ago, so my memory has retained only a few observations: life was strongest near water sources, and the weediest plants were most successful in revegetating the barren gray ash. Mosses tolerant of Seattle's freeway cracks grew on the loose sand and ash. Fireweed, which thrives after forest fires, clear-cuts and bombed sites, was abundant. If memory serves, scientists in general expressed pleased surprise at the rapidity of revegetation.
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