2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147038In a recent Physical Review Letter, Mantegna et. al., report that certain statistical signatures of natural language can be found in non-coding DNA sequences. In this comment we show that random noise with power-law correlation similar to $1/f$ noise, exhibits the same "linguistic" signature as those found in non-coding DNA. We conclude that these signatures cannot distinguish languages from noise.2 Pages Latex, one figure (PS) available separately, contact the AuthorsAdaptation and Self-Organizing SystemsQuantitative Biologytext