Most of the petrified runes, allt least from what I can guess is being done by these small coppertone beetles shown on the dark underside of the tree bark. Over time, I hypothesize that their cutting trails turn into these runes, or markings, which some have quite remarkable detail to current events. Could microrganisms and small bugs and birds have the capability to produce intelligent art?

Stay tuned for an image I found that may shed new light on this hypothesis.