Even if you're a fastidious cleaner, you've probably noticed a light-pink hue appear somewhere in your bathtub, shower, or sink. No need to adjust your cleaning products: Those rose-colored streaks are colonies of bacteria chowing down on your soap scum. Thanks to their unusual color, these simple microbes have made some horrifying appearances in human history books.
Related: How Bacteria Make a Grappling Hook for Propulsion
What Could Go Wrong?
Written by Ashley Hamer February 20, 2019
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