From communicating to talking

If we are to consider the transition from prelinguistic communication to language, particularly with a concern for possible continuities, we had better begin by taking as close a look as we can at the so-called “original endowment�? of human beings. Might that endowment affect the acquisition and early use of language? I do not mean simply the prelinguistic precursors of grammar or an “innate capacity�? for language. The question must be a more general one. What predisposes a living being to use language and be changed by its use? Suppose we grant that there is some innate capacity to master language as a symbolic system, as Noam Chomsky urged, or even to be predisposed toward particular linguistic distinctions, as Derek Bickerton has recently proposed? Why is language used? After all, chimpanzees have some of the same capacities and they don’t use them.