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When Life Nearly Died: The Greatest Mass

When Life Nearly Died: The Greatest Mass Extinction of All Time by Michael Benton

When Life Nearly Died: The Greatest Mass Extinction of All Time



When Life Nearly Died: The Greatest Mass Extinction of All Time epub

When Life Nearly Died: The Greatest Mass Extinction of All Time Michael Benton ebook
Page: 336
Format: pdf
ISBN: 9780500285732
Publisher: W W Norton & Co Inc


However the Permian-Triassic extinction was the most dramatic. Benton, When Life Nearly Died: The Greatest Mass Extinction of All Time, Thames and Hudson, 2003. Five times in the history of life on Earth, mass extinctions have eliminated at least three-quarters of the species that were present before each episode began. It took some 10 million years for Earth to recover from the greatest mass extinction of all time, latest research has revealed. Life was nearly wiped out 250 million years ago, with only 10 per cent of plants and animals surviving. "We may have found the hottest time the world has ever had," researcher Paul Wignall, a geologist at the University of Leeds in England, told LiveScience. The land masses were, except for at the poles, very hot, the averages at over 100 F. Scientists now think the ocean's north/south circulation shut down and the seas became too tepid and stagnant so 90% of all sea life perished while on the land, 70% Scientists at the National Center for Atmospheric Research (NCAR) have created a computer simulation showing Earth's climate in unprecedented detail at the time of the greatest mass extinction in the planet's history. The fossil record shows us that at this point, the most catastrophic mass extinction in Earth's history occurred. By Charles Choi, LiveScience Contributor: Feverishly hot ocean surface waters potentially reaching more than 104 degrees Fahrenheit (40 degrees Celsius) may have helped cause the greatest mass extinction in Earth's history, researchers say .

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