You can find bacteria everywhere. They're invisible to us. I've never seen a bacterium, except under a microscope. They're so small, we don't see them, but they are everywhere.

You live in intimate association with bacteria, and you couldn't survive without them.

Bacteria mineralized the rocks; they deposited the iron. They made the geology we see.

We mostly don't get sick. Most often, bacteria are keeping us well.

All these bacteria that coat our skin and live in our intestines, they fend off bad bacteria. They protect us. And you can't even digest your food without the bacteria that are in your gut. They have enzymes and proteins that allow you to metabolize foods you eat.

My bacteria glow in the dark - no human being doesn't like that.