Calls out of chaos: the adaptive significance of nonlinear phenomena in mammalian vocal production

  title={Calls out of chaos: the adaptive significance of nonlinear phenomena in mammalian vocal production},
  author={W. Tecumseh Fitch and J. Neubauer and Hanspeter Herzel},
  journal={Animal Behaviour},
Abstract Recent work on human vocal production demonstrates that certain irregular phenomena seen in human pathological voices and baby crying result from nonlinearities in the vocal production system. Equivalent phenomena are quite common in nonhuman mammal vocal repertoires. In particular, bifurcations and chaos are ubiquitous aspects of the normal adult repertoire in many primate species. Here we argue that these phenomena result from properties inherent in the peripheral production… 

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