2 Billion Years On, This Bacteria Remains Unchanged

February 4, 2015 6:20 PM

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Wedged inside rocks in the deep sea off the coast of Western Australia lurks an organism that hasn’t evolved in more than 2 billion years, scientists say.

From this deep-sea location, a team of researchers collected fossilized sulfur bacteria that was 1.8 billion years old and compared it to bacteria that lived in the same region 2.3 billion years ago. Both sets of microbes were indistinguishable from modern sulfur bacteria found off the coast of Chil...

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