" But from an evolutionary standpoint, there are good grounds to assert that “language” is indeed a natural phenomenon, which originates in the molecular language of the genome and has found, in the course of evolution, its hitherto highest expression in human language (Küppers, 1995). For evolutionary biologists, there is no question as to whether languages below the level of human language exist; the issue is rather about identifying the general conditions under which linguistic structures originate and evolve. "

― Paul C.W. Davies , Information and the Nature of Reality: From Physics to Metaphysics