The Wisdom of Bacteria 细菌的智慧



Average adult contains around 30 trillion human cells, harbors 40 trillion bacteria, which account for between 1% and 3% of our body mass. We have 500 species of microbes, around 100 trillion weight 1kg, live in our guts. They are human extraordinary partners, they sculpt our organs, defend us from disease, break down our food, educate our immune systems, guide our behavior, bombard our genomes with their genes, and grant us incredible abilities. Although they are frequently viewed as a source of disease, bacteria are mostly harmless or even beneficial. We can­not live with­out bac­te­ria, though some­times we die be­cause of bac­te­ria.


Ed Yong. I Contain Multitudes: The Microbes Within Us and a Grander View of Life. HarperCollins, 2016.