When linguists think about the origins of human language, they are really interested in the origins of grammar. How did grammar come about? For instance, when and why did early people stop naming actual things and start using nouns, like tree and rock, more powerfully as abstract categories with no reference to anything specific in the natural world. At that point a grammatical system, syntax, would be needed to refer to a specific tree or rock, perhaps one not visible at the moment.
Dr. Falk, as an evolutionary anthropologist, approaches the subject of language origin from a different (though complementary) perspective. She is interested, for example, in why humans would communicate with each other at all. How did such an impulse evolve? What is the connection between human messages and human nature? What role did mothering and infant needs play? Out of what other forms of communication, such as gestures and music, might the complex verbal system have taken its cues? Even if one focuses on grammatical issues in language development, it is useful to be aware of the broad view of evolving human nature that Falk presents. And beyond that, her book is a great read, page after page filled with fascinating bits of information about everyone's favorite topic--ourselves.
--Dr. William Murdick, author of "What English Teachers Need to Know about Grammar"