Monarch Spinor Cycle: A 720-Degree Generational Resonance in Danaus plexippus

This paper proposes a novel theoretical model linking the four-generation migratory cycle of the monarch butterfly (Danaus plexippus) to the 720-degree rotational symmetry of spin-½ particles in quantum mechanics. Drawing on the SU(2) spinor structure, the study maps each monarch generation to a 180° phase rotation, culminating in a complete 720° cycle that aligns with a return to the original overwintering site in Mexico. The work further explores a symbolic correspondence between internal quark spin dynamics and externally expressed lepton states, suggesting that metamorphosis (e.g., the chrysalis phase) acts as a Zeno-like suspension in which phase coherence is preserved but temporarily unobservable. The paper concludes by proposing that monarch navigation may reflect a deeper field-based geometric resonance — a biological echo of quantum spinor projection memory. This contribution is intended to open new interdisciplinary dialogue between quantum physics, developmental biology, and theoretical ecology.