this post was submitted on 24 May 2025
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Couple more for ya.



Ooooooo I like the rocks!!!
Those are thrombolites! Ancient bacterial (?) colonies that are still alive, they turn the air and stuff into calcium deposits
OMG THATS SO COOL!!!!
DOWN A RABBIT HOLE I GO!
From the rabbit hole...
Both structures are created by cyanobacteria.
The name "cyanobacteria" (from Ancient Greek κύανος (kúanos) 'blue') refers to their bluish green (cyan) color,[5][6] which forms the basis of cyanobacteria's informal common name, blue-green algae.[7][8][9][note 2]
Common blue-green algae has magic properties!