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Mysterious micro-burrows in desert marble and limestone were probably made by microbes that lived millions of years ago.
“Millions of years ago”—that narrows it down to 99.95% of the history of life on earth.
A least it was clickbaitey sensationalism about something other than the giant ground sloths this time.
deleted by creator
Praise be C’Thulu
Is it like the Time Tombs in Hyperion?


