The Talk Show is a four-part series on the fascinating world of language and speech. It examines some of the debates currently raging in the scientific community.Part 1: The Search for the Mother Tongue studies the mystery of how children acquire language and learn very complicated ways of expressing themselves, apparently on their own. Is it because of a special organ in the brain, specializing in language, that arose through evolution?

Part 2: Born to Talk looks at the origins of language (gossip, some suggest, is why we learned to talk) and language in animals, as well as giving examples of what is thought to be the first language on earth.

Part 3: Native Tongue examines the diversity and richness of native languages in the Americas and the controversy of how they arose.

Part 4: Talk of Tomorrow looks at how languages are likely to evolve in the future.