Can Changes in Sea Level Cause Periods of Mass Extinction?—A Galaxy Exclusive - Instablogs
Can Changes in Sea Level Cause Periods of Mass Extinction?—A Galaxy Exclusive
Kenneth , Chicago: Jun 20 2008
Made Popular Jun 20 2008
United States :
For years scientists have been trying to find explanations for some of the world’s most mysterious extinction events. Since life began on Earth some 3.5 billion years ago, there have been as many as 23 mass extinction events.
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