Like a reef or rainforest, what we call a human is actually a multispecies superorganism — technically a "holobiont." We evolved to exist with our microbes and the microbiomes of others. Breast milk co-evolved to feed the growing garden in an infant's gut. We exchange microbes when we hug and kiss or have a pet in the house. Today, Ara Katz, co-founder of Seed, talks about the importance of microbes and how they can impact the health of our bodies, our children, and our planet. To learn more from Ara and Seed, check out their Instagram channel at instagram.com/seed or visit seed.com.