This article was published in the Science Daily;

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‘Rare 2.5-billion-year-old rocks reveal hot spot of sulfur-breathing bacteria: Sulfur-dependent life forms thrived in oceans.’ (http://www.sciencedaily.com/releases/2014/11/141106143711.htm) on November 8, 2014, and its Source was the University of Maryland. Heather Dewar wrote the original article of this edition. According to the article Biogeochemical gestures, in Brazilian 2.5-billion-year-old carbonate rocks disclose that sulfur-consuming bacteria were full of life at a time when levels of ocean sulfur were low. Geologists concentrated on sulfur isotopes in antique carbonate rocks. The research study reveals early atmospheric chemistry of the Earth (University of Maryland 2014, November 6). There is a heated debate around the evolution of sulfur-dependent bacteria among the numerous scientists who study the early history of planet earth. The scientists claim that these organisms lived when there were fewer oxygen levels in the atmosphere (less than one-thousandth of their quantity now). Active in ocean waters, the bacteria breathed in sulfate instead of free oxygen molecules. The big question is how the sulfate reached the ocean and how it became abundant to be able to support life (University of Maryland 2014, November 6). A University of Maryland doctoral student of geology, Iadviga Zhelezinskaia, sought this answer. Zhelezinskaia, as the first researcher to analyze these biochemical signals of sulfur found 2.5 billion-year-old carbonate rocks from Brazil, formed on the floor of the ocean. In his research published