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Is there such a thing as the "normal extinction rate"?
by 5040 8y ago
Is there such a thing as the "normal extinction rate"?
- tmountain 8y agoAlthough extinction is a natural phenomenon, it occurs at a natural “background” rate of about one to five species per year. Scientists estimate we're now losing species at 1,000 to 10,000 times the background rate, with literally dozens going extinct every day.