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2-bn-year-old rock harbors living microbes, rewrites life's history
(interestingengineering.com)
just science related topics. please contribute
note: clickbait sources/headlines aren't liked generally. I've posted crap sources and later deleted or edit to improve after complaints. whoops, sry
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https://microbeonline.com/types-of-staining-techniques-used-in-microbiology-and-their-applications/