Eat shit and live

OK, crass, but I couldn't resist. And probably true...

Our garden

Given the mindboggling diversity of life on earth, it should not be surprising that our bodies host a whole, complex planet's worth of little critters... bacteria, viruses, fungus, protozoans, god knows what... some of them our friends, some our enemies, many of them, perhaps, just hitching a ride in a warm and moist environment. Pass the kombucha.