Grooming, Gossip, and the Evolution of Language

Why is it that among all the primates, only humans have language? According to Professor Robin Dunbar's new book, Grooming, Gossip, and the Evolution of Language, humans gossip because we don't groom each other. Dunbar builds his argument in a lively discussion that touches on such varied topics as the behavior of gelada baboons, Darwin's theory of evolution, computer-generated poetry, and the significance of brain size. He begins with the social organization of the great apes. These animals live in small groups and maintain social cohesion through almost constant grooming activities. Grooming is a way to forge alliances, establish hierarchy, offer comfort, or make apology. Once a population expands beyond a certain number, however, it becomes impossible for each member to maintain constant physical contact with every other member of the group. Considering the large groups in which human beings have found it necessary to live, Dunbar posits that we developed language as a substitute for physical intimacy.

Whether or not you accept Dunbar's premise, his book is worth reading, if only for its animated prose and wealth of scientific information. An obvious choice for science buffs, Grooming, Gossip, and the Evolution of Language is a wonderful book for anyone with an inquiring mind and an interest in what makes the world go round.