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Big animals crucial for soil fertility: study The mass extinction of large animals in the Pleistocene era caused today's dearth of soil nutrients, scientists said Sunday, and warned of further damage if modern giants like the elephant disappear.
12 августа 2013
©RIA Novosti Soil detoxifocation at Proton-M crash site completed Detoxification of soil pollutants at the crash area of the Russian Proton-M rocket-carrier finished on July 10.
11 июля 2013
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