Human voices are uniquely identifiable due to specific anatomical features that evolved over time. Unlike other primates, humans lack vocal membranes, which allows for more stable and controllable sound production necessary for speech. Further refinement occurred in the vocal tract's geometry, enabling a wider range of sounds and individual distinctiveness. AI
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RANK_REASON The article discusses a scientific study on the evolutionary biology of human voice production. [lever_c_demoted from research: ic=1 ai=0.1]
