Arnold K, Zuberbuhler K (2006) Language evolution: compositional semantics in primate calls. Nature 441:303

Barsalou L (2005) Continuity of the conceptual system across species. Trends Cog Sci 9:309-311

Beehner JC, Bergman TJ, Cheney DL, Seyfarth RM, Whitten PL (2005) The effect of new alpha males on female stress in free-ranging baboons. Anim Behav 69:1211-1221

Bergman TJ, Beehner JC, Cheney DL, Seyfarth RM (2003) Hierarchical classification by rank and kinship in baboons. Science 302:1234-1236

Bickerton D (1981) Roots of Language. Karoma, Ann Arbor, MI

Bickerton D (1990) Language and species. University of Chicago Press, Chicago

Boyd R, Silk JB (2000) How humans evolved. W.W. Norton, New York

Burling R (2005) The talking ape. Oxford University Press, Oxford

Calvin WH, Bickerton D (2000) Lingua ex machina: reconciling Darwin with the human brain. MIT Press, Cambridge, MA

Carey S, Spelke E (1996) Science and core knowledge. Phil Sci 63:515-533

Cheney DL, Seyfarth RM (1997) Reconciliatory grunts by dominant female baboons influence victims' behaviour. Anim Behav 54:409-418

Cheney DL, Seyfarth RM (1998) Why monkeys don't have language. In: Petersen G (ed) The Tanner lectures on human values, vol 19. Utah University Press, Salt Lake City, pp 175-219

Cheney DL, Seyfarth RM (1999) Recognition of other individuals' social relationships by female baboons. Anim Behav 58:67-75

Cheney DL, Seyfarth RM (2007) Baboon metaphysics. University of Chicago Press, Chicago

Cheney DL, Seyfarth RM, Silk JB (1995a) The responses of female baboons to anomalous social interactions: evidence for causal reasoning? J Comp Psych 109:134-141

Cheney DL, Seyfarth RM, Silk JB (1995b) The role of grunts in reconciling opponents and facilitating interactions among adult female baboons. Anim Behav 50:249-257

Cheney DL, Seyfarth RM, Fischer J, Beehner JC, Bergman TJ, Johnson SE, Kitchen DM, Palombit RA, Rendall D, Silk JB (2004) Factors affecting reproduction and mortality among baboons in the Okavango Delta, Botswana. Int J Primatol 25:401-428

Chomsky N (1982) Noam Chomsky on the generative enterprise: a discussion with Riny Huybregts and Henk van Riemsdijk. Foris, Dordrecht

Cohen YE, Hauser MD, Russ BE (2006) Spontaneous processing of abstract categorical information in the ventrolateral prefrontal cortex. Bio Lett 2:261-265

Curtiss S (1977) Genie: a linguistic study of a modern-day `wild child'. Academic Press, New York

Engh AL, Beehner JC, Bergman TJ, Whitten PL, Hoffmeier RR, Seyfarth RM, Cheney DL (2006a) Behavioural and hormonal responses to predation in female chacma baboons (Papio hamadryas ursinus). Proc R Soc Lond B 273:707-712

Engh AL, Beehner JC, Bergman TJ, Whitten PL, Hoffmeier RR, Seyfarth RM, Cheney DL (2006b) Female hierarchy instability, male immigration, and infanticide increase glucocorticoid levels in female chacma baboons. Anim Behav 71:1227-1237

Engh AE, Hoffmeier RR, Cheney DL, Seyfarth RM (2006c) Who, me? Can baboons infer the target of vocalisations? Anim Behav 71:381-387

Fisher C, Gleitman LR (2002) Language acquisition. In: Pashler HF, Gallistel CR (eds) Stevens handbook of experimental psychology, vol 3: learning and motivation. Wiley, New York, pp 445-496

Fodor JA (1975) The language of thought. Crowell Press, New York

Ghazanfar A, Logothetis N (2003) Facial expressions linked the monkey calls. Nature 423:937-938

Ghazanfar AA, Maier JX, Hoffman KL, Logothetis N (2005) Multisensory integration of dynamic faces and voices in rhesus monkey auditory cortex. J Neurosci 25:5004-5012

Gil da Costa R, Braun A, Lopes M, Hauser MD, Carson RE, Herskovitch P, Martin A (2004) Toward an evolutionary perspective on conceptual representation: species-specific calls activate visual and affective processing systems in the macaque. Proc Natl Acad Sci USA 101:17516-17521

Gleitman LR, Papafragou, A (2005) Language and thought. In: Holyoak K, Morrison R (eds) Cambridge handbook of thinking and reasoning. Cambridge University Press, Cambridge, pp 633-661

Hauser MD, Chomsky N, Fitch W (2002) The faculty of language: what it is, who has it, and how did it evolve. Science 298:1565-1568

Hurford JD (1990) Beyond the roadblock in linguistic evolution studies. Behav Brain Sci 13:736-737

Hurford JD (1998) Introduction: the emergence of syntax. In: Hurford JR, Studdert-Kennedy M, Knight C (eds) Approaches to the evolution of language. Cambridge University Press, Cambridge, pp 299-

Hurford JD (2003) The neural basis of predicate-argument structure. Behav Brain Sci 26:261-316

Jackendoff R (1987) Consciousness and the computational mind. Basic Books, New York

Jackendoff R (1990) What would a theory of language evolution have to look like? Behav Brain Sci 13:737-738

Jackendoff R (1999) Possible stages in the evolution of the language capacity. Trends Cog Sci 3:272-279

Jackendoff R (2002) Foundations of language. Oxford University Press, Oxford

Johansson S (2005) Origins of language: constraints on hypotheses. John Benjamins, Philadelphia

Jolly A (1966) Lemur social behavior and primate intelligence. Science 153:501-506

Kellman PJ, Spelke ES (1983) Perception of partially occluded objects in infancy. Cog Psych 15:483-524

Kirby S (1998) Fitness and the selective adaptation of language. In: Hurford JR, Studdert-Kennedy M, Knight C (eds) Approaches to the evolution of language. Cambridge University Press, Cambridge, pp 359-383

Knight C, Studdert-Kennedy M, Hurford JR (2000) Language: a Darwinian adaptation? In: Knight C, Studdert-Kennedy M, Hurford JR (eds) The evolutionary emergence of language. Cambridge University Press, Cambridge, pp 1-15

Newmeyer F (1991) Functional explanations in linguistics and the origins of language. Lang Commun 11:3-28

Newmeyer F (2003) Grammar is grammar and usage is usage. Language 79:682-707

Owren MJ, Seyfarth RM, Cheney DL (1997) The acoustic features of vowel-like grunt calls in chacma baboons (Papio cynocephalus ursinus): implications for production processes and functions. J Acoust Soc Am 101:2951-2963

Palombit RA, Seyfarth RM, Cheney DL (1997) The adaptive value of friendships to female baboons: experimental and observational evidence. Anim Behav 54:599-614

Pinker S, Bloom P (1990) Natural language and natural selection. Behav Brain Sci 13:713-783

Reader SM, Laland KN (2002) Social intelligence, innovation, and enhanced brain size in primates. Proc Natl Acad Sci USA 99:4436-4441

Sapolsky R (2002) Endocrinology of the stress response. In: Becker JB, Breedlove SM, Crews D, McCarthy MM (eds) Behavioral endocrinology. MIT Press, Cambridge, MA, pp 409-450

Sapolsky RM (2004) Social status and health in humans and other animals. Annu Rev Anthropol 33:393-

Savage-Rumbaugh ES (1986) Ape language: from conditioned response to symbol. Columbia University Press, New York

Seyfarth RM, Cheney DL (2003) Signalers and receivers in animal communication. Annu Rev Psychol 54:145-173

Silk JB, Seyfarth RM, Cheney DL (1999) The structure of social relationships among female savannah baboons in Moremi Reserve, Botswana. Behaviour 136:679-703

Silk JB, Alberts SC, Altmann J (2003) Social bonds of female baboons enhance infant survival. Science 302:1231-1234

Skinner BF (1974) About behaviorism. Knopf, New York

Snowdon CT (1990) Language capacities of nonhuman primates. Yearbk Phys Anthropol 33:215-243

Stalnaker R (1999) Propositional attitudes. In: Wilson RA, Keil FC (eds) The MIT encyclopaedia of the cognitive sciences. MIT Press, Cambridge, MA, pp 678-679

Steiper ME, Young NM, Sukarna TY (2004) Genomic data support the hominoid slowdown and an Early Oligocene estimate for the hominoid-cercopithecoid divergence. Proc Natl Acad Sci USA 101:17021-17026

Talmy L (2006) Recombinance in the evolution of language. Paper presented at the 6th International Conference on the evolution of language, Rome

Wittig RM, Crockford C, Wikberg E, Seyfarth RM, Cheney DL (2007) Kin-mediated reconciliation substitutes for direct reconciliation in baboons. Proc R Soc Lond B 274:1109-1115

Wang S, Baillargeon R, Brueckner L (2004) Young infants' reasoning about hidden objects: evidence from violation-of-expectation tasks with test trials only. Cognition 93:167-198

Worden R (1998) The evolution of language from social intelligence. In: Hurford JR, Studdert-Kennedy M, Knight C (eds) Approaches to the evolution of language. Cambridge University Press, Cambridge, pp 148-168

Zuberbuhler K (2002) A syntactic rule in forest monkey communication. Anim Behav 63:293-299