Part I. Neurobiological advances -- Evolutionary neurobiology and the origin of language as a cognitive adaptation -- Language development and biological programming: behavioral and electrophysiological indices -- Primate communication, comparative neurology, and the origin of language reexamined -- Part II. Perceptual bases -- Grasping and the gesture theory of language origins -- Ways to accelerate progress in glottogonic research -- Implication and the evolution of language -- Perceptual bases for the evolution of speech -- Part III. Fossil evidence -- Neoteny and language evolution -- Language evolution and paedomorphosis -- Language evolution and paedomorphosis. A reply to Jan Wind -- Brain size and the evolution of language -- Laryngeal descent in 40.000 year old fossils -- Part IV. Linguistic evidence -- Live speech and preverbal communication -- On linguistic territoriality, iconicity and language evolution -- Vestiges of primeval phonology in certain ancient languages -- The synchronous development and kinesis: Further evidence -- Behavioral flexibility and the evolution of language -- Index.