Eusocial Inter-Species Dynamics

On Zyphos, several species can share the work of sustaining a society. Reproduction, labor, defense, memory, and social status are distributed across species rather than held within a single social organism. This is what “eusocial inter-species dynamics” describes: how those shared roles work and how the species depend on one another.

The biological foundation is Mutable Memory Endosymbiosis. Mutable memory is already stored and exchanged within cells, between cells, among organisms, and across ecosystems. Societies built from several species extend these existing relationships to a larger scale. They are not an unusual political arrangement that appeared only late in the biosphere’s development.

In This Setting

For Airawa communities that depend on mother trees, preserving communal memory also means depending on another species’ reproductive bodies. The trees help sustain both the community’s archive and its political continuity. This dependence makes the relationship a form of archival eusociality.

The Sa’auei’a organize around mobile families whose members trust one another strongly. Those families participate in a continent-wide network of remembered ecological relationships. Their reciprocal nomadic eusociality combines movement with continuing obligations to ecological partners.

The Airawa Empire turns this biological capacity into a weapon. It uses engineered life to transmit belief itself, making the relationships that connect species a means of political control.