Humans evolved a brain with an extraordinary knack for language, but just how and when we began using language is still largely a mystery. Early human communication may have been in sign language or song, and scientists are studying other animals to learn how human language evolved.
http://www.npr.org/templates/story/story.php?storyId=129155123
Professor Jean Aitchison delivers her second Reith Lecture from her series entitled ‘The Language Web’. She examines the origin of language in the human species and explains how a fresh look at the role of language has led to new ideas about how it started.
Brain Science Podcast #30 is a discussion of Christine Kenneally’s book, The First Word: The Search for the Origin of Language.This episode concentrates on the emergence of the study of language evolution (evolutionary linguistics) from an area of area of inquiry that was banned in the 19th century to one that is flourishing and benefiting from new evidence from fields as diverse as genetics and studies in animal communication.