Scientific discoveries over the past fifteen years on the human microbiome, based on computational genetic analysis of microbes (metagenomics), have led to the discovery of the presence of more than ten thousand different species of microbes in our bodies. Biodiversity is therefore a concept that has begun to concern not only the world around us, but also the world inside and on us. Faced with the variety and diversity of species and strains, scientists have had to find ways to organize the data conceptually and visually. This has led to a reassessment and sometimes abandonment of the taxonomies that traditionally organize species. However, no form of visualization is innocent: any strategy of topological organization carries within it a vision of the human and its relationship to other living things, especially to the invisible tenants that inhabit our bodies. Thus, if the tree of evolution places humans in a relationship of continuity with the being, other diagrams that distribute information through patterns based on similarity and difference promote analogical leaps between ecosystems at different scales.The diagrams thus carry different ontologies, whose integration into physical, cognitive and narrative pathways (such as that of the only museum dedicated to microbes, Micropia, at the Artis Zoo in Amsterdam) promotes an internatural dialogue.