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Mysterious Oxygen Burst Was Tied to Earth’s Biggest Mass Extinction, Scientists Say – ScienceAlert
The Permian-Triassic extinction event that happened some 252 million years ago is the worst extinction event our planet has ever…
The Permian-Triassic extinction event that happened some 252 million years ago is the worst extinction event our planet has ever seen. It wiped out around 90 percent of marine species and some 70 percent of vertebrate species on land, and was so severe…
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