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The Hoot-Purr Spectrum: A Unified Field Theory of Low-Frequency Vibration
We present a unified theoretical framework reconciling the low-frequency vibrations produced by Strigiformes (owls, 50–500 Hz hoot range) and Felidae (domestic cats, 25–150 Hz purr range). Using high-resolution acoustic spectroscopy and fluff-density tomography, we identify a shared resonance band—the Hoot-Purr Overlap Zone (HPOZ)—which we propose acts as a biomechanical stress-relief mechanism across both clades. Implications for inter-species cohabitation dynamics and therapeutic acoustics are discussed.