Day: November 30, 2016

Evidence of Life Before Oxygen Found in South Africa

Sulphur-oxidising bacteria which lived on a very young Earth—back when the oxygen concentration in the latter’s atmosphere was almost zero—have been found fossilised on rocks in South Africa. The paper is published in the journal Geology. Life on Earth is (mostly) characterised by the need for oxygen. And, then, we have exceptions to the rule,

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