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Permian Extinction Caused by Acid Rain?
November 25, 2013 | Massachusetts Institute of Technology

“Rain as acidic as undiluted lemon juice may have played a part in killing off plants and organisms around the world during the most severe mass extinction in Earth’s history.” Quoted from the MIT press release.


  Related Stories

Who Becomes Dominant After a Mass Extinction?
May 3, 2013 | National Science Foundation
"These scientists have identified an outcome of mass extinctions--that species ecologically marginalized before the extinction may be 'freed up' to experience evolutionary bursts then dominate after the extinction." Quote from H. Richard Lane, Program Director, National Science Foundation.

The Extinction Before the Dinosaurs
March 26, 2013 | National Science Foundation
"More than 200 million years ago, a massive extinction decimated 76 percent of marine and terrestrial species, marking the end of the Triassic period and the onset of the Jurassic. The event cleared the way for dinosaurs to dominate Earth." Quoted from the NSF press release.

The Acid Test
October 23, 2013 | Geology.com
The Acid Test: Geologists use dilute hydrochloric acid to identify carbonate minerals and detect their presence in rocks.


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