““bacteria are infinitely more versatile than we are. They are metabolic wizards that can digest everything from uranium to crude oil. They are expert pharmacologists that excel at making chemicals that kill each other. If you want to defend yourself from another creature or eat a new source of food, there's almost certainly a microbe that already has the right tools for the job. And if there isn't, there soon will be: these things reproduce rapidly and swap genes readily. In t””