As sedimentary grains get trapped with bacteria in shallow water, stromatolites form, giving a window into microbial life that date back more than 3.5 billion years ago. Shown here is a stromatolite with cyanobacteria, one of the first producers of oxygen that radically altered our atmosphere to what it is today.
Image by Douglas Moore, University of Wisconsin.
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As sedimentary grains get trapped with bacteria in shallow water, stromatolites form, giving a window into microbial life that date back more than 3.5 billion years ago. Shown here is a stromatolite with cyanobacteria, one of the first producers of oxygen that radically altered our atmosphere to what it is today.

Image by Douglas Moore, University of Wisconsin.

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    wahhh bacteria you are the most beautiful
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    Feel like a nerd reblogging this but look it is so pretty hehe
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    MICRO-PHOTOGRAPHY OF THE DEEP PAST These are the true remains of the Old Ones, who lived on a world under constellations...
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