Ancient rocks reveal how Earth recovered from mass extinction

Ancient rocks reveal how Earth recovered from mass extinction Edinburgh UK (SPX) Jul 21, 2016 - Scientists have shed light on why life on Earth took millions of years to recover from the greatest mass extinction of all time. The study provides fresh insight into how Earth's oceans became starved of oxygen in the wake of the event 252 million years ago, delaying the recovery of life by five million years. Findings from the study are helping scientists to better understand how en ... more

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