On a.. philosophical level.. the findings suggest that our concept of “self” should be broadened to include our many trillions of microbial residents. “These bacteria live inside us for our entire lives, and they’ve evolved to look and act like us, as part of us.
Fascinating article about our gut bacteria and how they work together with our bodies. Here.
p.s. And here: “Princeton University scientist Bonnie Bassler compared the approximately 30,000 human genes found in the average human to the more than 3 million bacterial genes inhabiting us, concluding that we are at most one percent human.”