In the mirror, we all see ourselves as one whole, independent organism. Wave at your reflection. Smile. Wiggle your ears. You might think, ‘Hey, this is me.’ But think again.
You easily overlook the trillions of bacteria that live on and inside your body - your very own microbiota. The earth is teeming with bacteria and other microorganisms, and guess what? The place in the world with the highest density of these tiny creatures is in your own body!