EARTH SCIENCE
Are We Currently Experiencing the Largest Mass Extinction in Earth's History?
Viewpoint: Yes, human impact is currently causing the greatest mass extinction in Earth's hist...
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Mass Extinction Hypothesis
Extinction is the permanent loss of a species or another taxon of organisms (such as a genus, family, order, or phylum), occurring over all of its range. Extinction has occu...
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Mass Extinction
Periodically, every fifty to one hundred million years or so, the earth has experienced mass extinctions, the relatively rapid, large-scale disappearance of many if not most living c...
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Are We Currently Experiencing the Largest Mass Extinction in Earth's History
Mass Extinction Hypothesis
Mass Extinction