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| #1806526 in Books | Peter D Ward | 2002-08-15 | Original language:English | PDF # 1 | 8.78 x.71 x5.74l,.94 | File type: PDF | 320 pages | Rivers in Time The Search for Clues to Earth s Mass Extinctions||1 of 1 people found the following review helpful.| The Author Reviews the Great Extinction Events of the Past to Define the Present One|By J. Canestrino|In Rivers in Time: The Search for Clues to Earth's Mass Extinctions, the author, Peter Ward, describes the great mass extinctions over the last 500 million years of the Earth's history. Surprisingly, the most devastating was not the Cretaceous-Tertiary (K/T) extinction 65 milli||The pace of species extinction provoked by human rapacity may well now equal the rate of loss in the great mass extinction events that punctuate the history of life. We need a broad perspective on this most portentous of all ecological and evolutionary disaste
Several times in the distant past, catastrophic extinctions have swept the Earth, causing more than half of all species―from single-celled organisms to awe-inspiring behemoths―to suddenly vanish and be replaced by new life forms. Today the rich diversity of life on the Earth is again in grave danger―and the cause is not a sudden cataclysmic event but rather humankind's devastation of the environment. Is life on our planet teetering on the brink of another mass exti...
You can specify the type of files you want, for your gadget.Rivers in Time | Peter Ward. Just read it with an open mind because none of us really know.
