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misja111 on Nov 29, 2016 | parent | context | favorite | on: Geologist uncovers 2.5B-year-old fossils of bacter...

It seems difficult enough already to find those fossile bacteria, but how do people know that these bacteria were oxidizing sulfur?

danieltillett on Nov 29, 2016 | [–]

From the shift in Sulfur isotopes [1].

1. http://phys.org/news/2014-11-rare-billion-year-old-reveal-ho...

posterboy on Nov 29, 2016 | [–]

knowledge or believe, proof or evidence, to some it doesn't make much of a difference anyhow.

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