The essay explores, through the lens of psychoanalysis and Lacan’s thought, the possibility of a “biology of the unconscious” that dismantles the classical idea of the living being as an organized and purposeful substance. By critically reworking the Aristotelian paradigm and rethinking the notions of life and body, it shows how the living does not precede language, but is already its structural effect. In this view, the body is not a foundation but a surface of writing, a site of signifying inscription that produces subjectivity. Life appears not as a natural function, but as the effect of a symbolic cut that exceeds all organicity. When interrogated psychoanalytically, biological knowledge reveals its discursive and structural underpinnings. What emerges is a scene of the living in which life is written, deciphered, and split, rather than merely produced and organized. The text thus outlines a genealogy of human life as a symbolic effect rather than a substantial essence.