Even microbes carry out tiny “commerce”

A clos­er look at mi­crobes re­veals there’s big busi­ness go­ing on in their very small world, and some­times we are part of the trans­ac­tion, sci­ent­ists say.

A team of re­search­ers in­clud­ing North­ern Ar­i­zo­na Uni­vers­ity sci­ent­ist Nan­cy Col­lins John­son ar­gue in the jour­nal Pro­ceed­ings of the Na­t­ional Acad­e­my of Sci­ences that mi­crobes, like many an­i­mals, are sav­vy traders, sell­ing high and buy­ing low.

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