Home Art of Science And on the flea there was a bug…

And on the flea there was a bug…

It’s the leg of a water flea (which isn’t a flea but a type of crustacean) photographed through a wide-field fluorescence microscope as it fluoresces blue light. The red indicates the presence of Vibrio bacteria, a type that can cause serious illness if one is exposed to it while swimming with an open cut or scrape or by eating raw shellfish.

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