But there have been cataclysmic events in the earth's history that wiped out nearly all life on this planet. It seems to be part of a larger process in which the earth begins anew, sometimes with new species and new evolutions.
Consider, for example, that millions of years before the dinosaurs roamed the earth, a giant volcano in Siberia erupted. The end result was it wiped out most life forms on this planet.
How could a simple volcano do this? The eruption was the size of the United States. If you've ever been to The Big Island of Hawaii and stood on the hardened ground formed by lava, imagine if that covered the entire United States.
The Siberian volcano not only wiped out plants and animals in its path but produced methane gas, which, thanks to air currents, helped it travel around the earth until most life forms were wiped out.
The earth regenerated eventually. Dinosaurs evolved and then the Ice Age wiped them out, along with countless other species.
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