books.google.com - The Interactional Instinct explores the evolution of language from the theoretical view that language could have emerged without a biologically instantiated Universal Grammar. In the first part of the book, the authors speculate that a hominid group with a lexicon of about 600 words could combine these...http://books.google.com/books/about/The_Interactional_Instinct_The_Evolution.html?id=wVxc0SkDFtUC&utm_source=gb-gplus-shareThe Interactional Instinct : The Evolution and Acquisition of Language
