Resiproknisena
Resiproknisena is a theoretical concept used in speculative biology and evolutionary studies. It describes a hypothetical form of symbiosis where two organisms, through prolonged co-evolution, become so interdependent that they effectively function as a single biological entity. This goes beyond typical mutualism, where both species benefit from their interaction but remain distinct individuals. In resiproknisena, the survival and reproduction of each partner are critically dependent on the presence and function of the other, to the point where one might not be able to survive or reproduce independently, or even be recognizable as a separate organism without its partner.
The term itself is a neologism, likely derived from roots suggesting "reciprocal" or "interdependent" and "life"