Extinction Can Be Good for You
An newly-evolved species has a much better chance of surviving for a long time if it first appears right after a mass extinction. University of Cincinnati geologist Arnold Miller has found that the trend holds true no matter what was the ultimate cause of each mass extinction. New species were more widespread and fared better over the long run.
Miller used a database of marine fossils to examine longevity trends throughout the Phanerozoic era of the last 540 million years. In four separate cases, he found that creatures that first appeared following mass extinctions survived for longer periods of time than those that appeared at other times.
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