The history of language

  Words on the brain: from 1 million years ago? All social animals communicate with each other, from bees and ants to whales and apes, but only humans have developed a language which is more than a set of prearranged signals. Our speech even differs in a physical way from the communication of other animals. It comes from a cortical speech centre which does not respond instinctively, but organises sound and meaning on a rational basis. This section of the brain is unique to humans. When and how the special…