[1] Aboitiz, F. & Garcia, R. 1997 The evolutionary origin of the language areas in the human brain. A neuroanatomical perspective. Brain Res. Rev. 25, 381--396.

[2] Aoki, K. & Feldman, M. W. 1989 Pleiotropy and preadaptation in the evolution of human language capacity. Theor. Popul. Biol. 35, 181--194.

[3] Bates, E. 1992 Language development. Curr. Opin. Neurobiol. 2, 180--185.

[4] Bickerton, D. 1990 Language and Species. Chicago: University of Chicago Press.

[5] Brandon, R. N. & Hornstein, N. 1986 From icons to symbols: Some speculations on the origin of language. Biology and Philosophy 1, 169--189.

[6] Burling, R. 1993 Primate calls, human language, and nonverbal communication. Curr. Anthropol. 34, 25--53.

[7] Cavalli-Sforza, L. L. & Cavalli-Sforza, F. 1995 The Great Human Diasporas: The History of Diversity and Evolution. Translated by Sarah Thomas. Reading, MA: AddisonWesley.

[8] Cavalli-Sforza, L. L. 1997 Genes, peoples, and languages. Proc. Natl. Acad. Sci. USA 94, 7719--7724.

[9] Cavalli-Sforza, L. L. & Feldman, M. W. 1981 Cultural Transmission and Evolution: A Quantitative Approach. Princeton: Princeton University Press.

[10] Cheney, D. & Seyfarth, R. 1990 How Monkeys See the World. Chicago: University of Chicago Press.

[11] Chomsky, N. 1965 Aspects of the Theory of Syntax. Cambridge, MA: MIT Press.

[12] Chomsky, N. 1972 Language and Mind. New York: Harcourt Brace Jovanovich.

[13] Chomsky, N. 1988 Language and Problems of Knowledge: The Managua Lectures.Cambridge, MA: MIT Press.

[14] Cole, R. A. & Jakimik, J. 1980 A model of speech perception. In R. A. Cole (ed) Perception and Production of Fluent Speech. Hillsdale, NJ: Erlbaum.

[15] Corballis, M. 1991 The Lopsided Ape. New York: Oxford University Press. Entropy 2001, 3 243

[16] Deacon, T. 1997 TheSymbolicSpecies. London: Penguin Books.

[17] Dress, A., Mueller, S., & Nowak, M. 2001. The information storage capacity of compact metric spaces. preprint.

[18] Estoup, J. B. 1916 Gammes Stenographique. Paris: Gauthier-Villars.

[19] Gopnik, M. & Crago, M. 1991 Familial aggregation of a developmental language disorder. Cognition 21, 1--50.

[20] Grassly, N. C., Krakauer, D. C., & Von Haessler, A. 2001 Population structure and the origin of referential sign systems. J. theor. Biol, in press.

[21] Greenberg, J. H. 1971 Language, Culture, and Communication. Stanford, CA: Stanford University Press.

[22] Hauser, M. D. 1996 The Evolution of Communication. Cambridge, MA: Harvard University Press.

[23] Hurford, J. R. 1989 Biological evolution of the Saussurean sign as a component of the language acquisition device. Lingua 77, 187--222.

[24] Hurford, J. R. 1991 The evolution of the critical period for language acquisition. Cognition 40, 159--201.

[25] Hurford, J. R., Studdert-Kennedy, M., & Knight, C. (eds) 1998 Approaches to the Evolution of Language. Cambridge: Cambridge University Press.

[26] Hutsler, J. J. & Gazzaniga, M. S. 1997 The organization of human language cortex: Special adaptation or common cortical design? Neuroscientist 3, 61--72.

[27] Jackendo#, R. S. 1997 The Architecture of the Language Faculty. Cambridge, MA: MIT Press.

[28] Komarova, N. L. & Nowak, M. A. 2001 Natural selection of the critical period for grammar acquisition, Proc R Soc Lond B, submitted

[29] Krakauer, D. C. 2001 Kin imitation for a private sign system. Evolution, submitted.

[30] Liberman, A. M., Cooper, F. S., Shankweiler, D. P., & Studdert-Kennedy, M. 1967 Perception of the speech code. Psychological Review 74, 431--461. Entropy 2001, 3 244

[31] Lieberman, P. 1984 The Biology and Evolution of Language. Cambridge, MA: Harvard University Press.

[32] Mandelbrot, B. 1958 Les lois statistique macroscopiques du comportment. Psychol. Franca i se 3, 237--249.

[33] Maynard Smith, J. 1982 Evolution and the Theory of Games. Cambridge: Cambridge University Press.

[34] Maynard Smith, J. & Szathmary, E. 1995 The Major Transitions in Evolution. Oxford; New York: W. H. Freeman Spektrum.

[35] Maynard Smith, J. & Szathmary, E. 1999 The Origins of Life. Oxford: Oxford University Press.

[36] Miller, G. A. 1967 The Psychology of Communication. London: Penguin Books.

[37] Miller, G. A. 1981 Language and Speech. San Francisco: W. H. Freeman and Company.

[38] Miller, G. A. 1991 The Science of Words. New York: Scientific American Library.

[39] Miller, G. A. & Chomsky, N. 1963 Finitary models of language users. In Luce, R. D., Bush, R., & Galanter, E. (eds) Handbook of Mathematical Psychology, Vol. 2.New York: Wiley, 419--491.

[40] Nagy, W. E., Diadikoy, L., & Anderson, R. 1993 The acquisition of morphology: Learning the contribution of su#xes to the meanings of derivatives. Journal of Reading Behavior 25, 155--170.

[41] Nagy, W. E. & Anderson, R. C. 1984 How many words are there in printed school English? Reading Research Quarterly 19, 304--330.

[42] Newmeyer, F. 1991 Functional explanation in linguistics and the origin of language. Language and Communication 11, 3--96.

[43] Newport, E. 1990 Maturational constraints on language learning. Cognitive Sci. 14, 11--28.

[44] Niyogi, P. 1998 The Informational Complexity of Learning. Boston: Kluwer Academic Publishers. Entropy 2001, 3 245

[45] Niyogi, P. & Berwick, R. C. 1996 A language learning model for finite parameter spaces. Cognition 61, 161--193.

[46] Nobre, A., Allison, T. & McCarthy, G. 1994 Word recognition in the human inferior temporal lobe. Nature 372, 260--263.

[47] Nowak, M. A. & Krakauer, D. C. 1999 The evolution of language. Proc. Nat. Acad. Sci. USA 96, 8028--8033.

[48] Nowak, M. A., Krakauer, D. C., & Dress, A. 1999 An error limit for the evolution of language. Proc.R.Soc.Lond.B.266, 2131--2136.

[49] Nowak, M. A., Plotkin, J. B., & Krakauer, D. C. 1999 The evolutionary language game. J. theor. Biol. 200, 147--162.

[50] Nowak, M. A., Plotkin, J. B., & Jansen, V. A. A. 2000 The evolution of syntactic communication. Nature 404, 495--498.

[51] Pinker, S. 1994 The Language Instinct. New York: William Morrow and Company.

[52] Pinker, S. 1999 Words and Rules. New York: Basic Books.

[53] Pinker S. & Bloom, P., & commentators 1990 Natural language and natural selection. Behavioral and Brain Sciences 13, 707--784.

[54] Plotkin, J.B., & Nowak, M. A. 2000 Language evolution and information theory. J. theor. Biol. 205: 147-159.

[55] Seyfarth, R., Cheney, D., & Marler, P. 1980 Monkey responses to three di#erent alarm calls: evidence of predator classification and semantic communication. Science 210, 801--803.

[56] Smith, W. J. 1977 The Behavior of Communicating. Cambridge, MA: Harvard University Press.

[57] Steels, L. 1997 The synthetic modelling of language origins. Evolution of Communication Journal 1.

[58] Trapa, P. E. & Nowak, M. A. 2000 Nash equilibria for an evolutionary language game. Journal of Mathematical Biology, 41: 172-188. Entropy 2001, 3 246

[59] Von Frisch, K. 1967 The Dance Language and Orientation of Bees. Cambridge, MA: Harvard University Press.

[60] Yasuda, N., Cavalli-Sforza, L. L., Skolnick, M. & Moroni, A. 1974 The evolution of surnames: an analysis of their distribution and extinction. Theor. Popul. Biol. 5, 123-142.

[61] Zipf, G. K. 1935 The Psychobiology of Language. Boston: Houghton-Mi#in.