Study explores ancient ecosystem response to a 'big 5' mass extinction
San Francisco CA (SPX) Oct 07, 2015 - As the planet faces the dawn of a sixth mass extinction, scientists are searching for clues about the uncertain road ahead by exploring how ancient ecosystems collapsed and bounced back from traumatic upheavals. A new study follows the lengthy collapses and revival of South African ecosystems during one of the "big five" mass extinctions, the Permian-Triassic event, revealing unexpected re ... more

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