Introduction: Rewards and challenges of multi-perspectival work on the evolution of language and speech / Rudolf Botha
Why only humans have language / Robin Dunbar
Is sociality a crucial prerequisite for the emergence of language? / Luc Steels
Holistic communication and the co-evolution of language and music : resurrecting an old idea / Steven Mithen
Music as a communicative medium / Ian Cross and Ghofur Eliot Woodruff
Cultural niche construction : evolution's cradle of language / John Odling-Smee and Kevin N. Laland
Playing with meaning : normative function and structure in play / Sonia Ragir and Sue Savage-Rumbaugh
The ontogeny and phylogeny of non-verbal deixis / David A. Leavens, Timothy P. Racine, and William D. Hopkins
The directed scratch : evidence for a referential gesture in chimpanzees? / Simone Pika and John C. Mitani
The origins of the lexicon : how a word-store evolved / Maggie Tallerman
Language : symbolization and beyond / Eric Reuland
Grammaticalization from a biolinguistic perspective / Elly van Gelderen
Recursion, phonological storage capacity, and the evolution of modern speech / Frederick L. Coolidge and Thomas Wynn
Why women speak better than men (and its significance for evolution) / Bart de Boer
Mosaic neurobiology and anatomical plausibility / Wendy K. Wilkins.