Here, the author examines gossip as a form of 'verbal grooming', and as a means of strengthening relationships. He challenges the idea that language developed during male activities such as hunting, and that it was actually amongst women that it evolved.

Did mankind evolve unusually large brains simply in order to gossip? Primates differ from other animals by the intensity of their social relationships, by the amount of time they spend grooming one another. Not just a matter of hygiene, grooming is all about cementing bonds, making friends and influencing your fellow ape. Early humans, in their characteristic large groups of 150 or so, would have had to spend almost half their time in mutual grooming. Instead, Professor Robin Dunbar argues, they evolved a more efficient mechanism: language. It seems there is nothing idle about idle chatter. Having a good gossip ensures that a dynamic group - of hunter-gatherers, soldiers, workmates - remains cohesive.Men and women 'gossip' equally, but men tend to talk about themselves, while women talk more about other people, working to strengthen the female-female relationships that underpin both human and primate societies. Until now, most anthropologists have assumed that language developed in male-male relationships, during activities such as hunting. Dunbar's intriguing research suggests that, to the contrary, language evolved among women.

Did mankind evolve unusually large brains simply in order to gossip? Primates differ from other animals by the intensity of their social relationships, by the amount of time they spend grooming one another. Not just a matter of hygiene, grooming is all about cementing bonds, making friends and influencing your fellow ape. Early humans, in their characteristic large groups of 150 or so, would have had to spend almost half their time in mutual grooming. Instead, Professor Robin Dunbar argues, they evolved a more efficient mechanism: language. It seems there is nothing idle about idle chatter. Having a good gossip ensures that a dynamic group - of hunter-gatherers, soldiers, workmates - remains cohesive. Men and women 'gossip' equally, but men tend to talk about themselves, while women talk more about other people, working to strengthen the female-female relationships that underpin both human and primate societies. Until now, most anthropologists have assumed that language developed in male-male relationships, during activities such as hunting. Dunbar's intriguing research suggests that, to the contrary, language evolved among women.

Why do men talk and women gossip, and which is better for you? Why is monogamy a drain on the brain? And why should you be suspicious of someone who has more than 150 friends on Facebook? We are the product of our evolutionary history, and this history colors our everyday lives—from why we joke to the depth of our religious beliefs. In How Many Friends Does One Person Need? Robin Dunbar uses groundbreaking experiments that have forever changed the way evolutionary biologists explain how the distant past underpins our current behavior. We know so much more now than Darwin ever did, but the core of modern evolutionary theory lies firmly in Darwin’s elegantly simple idea: organisms behave in ways that enhance the frequency with which genes are passed on to future generations. This idea is at the heart of Dunbar’s book, which seeks to explain why humans behave as they do. Stimulating, provocative, and immensely enjoyable, his book invites you to explore the number of friends you have, whether you have your father’s brain or your mother’s, whether morning sickness might actually be good for you, why Barack Obama’s 2008 victory was a foregone conclusion, what Gaelic has to do with frankincense, and why we laugh. In the process, Dunbar examines the role of religion in human evolution, the fact that most of us have unexpectedly famous ancestors, and why men and women never seem able to see eye to eye on color.

What makes us human? How did we develop language, thought and culture? Why did we survive, and other human species fail? The past 12,000 years represent the only time in the sweep of human history when there has been only one human species. How did this extraordinary proliferation of species come about - and then go extinct? And why did we emerge such intellectual giants? The tale of our origins has inevitably been told through the 'stones and bones' of the archaeological record, yet Robin Dunbar shows it was our social and cognitive changes rather than our physical development which truly made us distinct from other species.

Robin Dunbar asks whether science really is unique to Western culture, even to humankind. He suggests that our "trouble with science" may lie in the fact that evolution has left our minds better able to cope with day-to-day social interaction than with the complexities of the external world.