Near the end of her book "The First Word: The Search for the Origins of Language," Christine Kenneally writes the following:
"It's clear by now that the problem of language evolution is completely intractable when you approach it from the perspective of a single discipline. For all the salient questions to be answered, the multidisciplinary nature of the field will have to become even more so. So far, it has taken years for individuals in different departments to start talking, to develop research questions that make sense for more than one narrow line of inquiry, and to start talking, to develop research questions that make sense for more than one narrow line of inquiry, and to start to understand one another's points of view. The field of language evolution needs students who can synthesize information from neuroscience, psychology, computer modeling, genetics and linguistics. The more this happens, the richer and wider the field will become, instead of devolving around one or two theoretical issues."
The book as a whole is a fascinating exercise in just this kind of synthesizing, and the author is a prime example of someone who understands and relays information from a variety of fields.