How Many Friends Does One Person Need?: Dunbar's Number and Other Evolutionary Quirks

by Robin Dunbar

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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 show more 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. show less

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5 reviews
This book could serve as a warning to those who might be tempted to turn their blog entries into full length books. Bloggers have a tendency to throw out thoughts and factoids but never back up these claims with references (well some do, providing hyperlinks). While this behavior is tolerated in a blog (probably because of their brevity), in a book this stands out as glaring sloppiness.
Dr. Dunbar's book is a particularly hard case because the information he presents is really interesting, but without references and a bibliography section, it is hard to follow up on anything without resorting to your own Google search. I also found some topics to be so simplified and watered down as to be rendered inaccurate.
This book is good example show more of "info-tainment"; it introduces many different areas of evolutionary behavioralism, but falls short in helping reader develop an in-depth knowledge on any particular subject.
Dr. Dunbar's other books are more academic and better suited to critical study.
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Съжалявам бай Дънбар, ама макар идеите ти да са интересни, ти самият ме дразниш.

Дразни ме безсрамното ти неуморно настояване да наричаме 150 "числото на Дънбар" когато говорим за групи хора, макар идеята ти да има еволюционна логика и макар усилията ти да имат успех и наистина на много места "числото на Дънбар" да се използва като израз, просто ме дразниш. Не, честно - що за самовлюбен кретен трябва да си, за да show more кръстиш сам числото на свое име?

Дразнят ме безкрайните ти опити да се правиш на забавен и да опростяваш езика си до степен да бъдеш на косъм от опростачването му само и само да бъдеш по-популярен и лесен за четене, въпреки че наистина книгите ти са станали доста популярни точно заради това, просто ме дразниш.

Дразни ме начина, по който изразяваш теориите си без да смяташ за нужно да приведеш някакви по-сериозни доказателства за верността им, освен повърхностни примери, макар някои от тия теории да са наистина любопитни и заслужаващи развитие, просто ме дразниш.

Дразни ме стилът ти на писане, макар ти да не си виновен, че си британец и тамошната научно-популярна литература е всичката в този стил.

Просто ме дразниш.
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Gave up on this book half-way through because it's too sloppy for a book about science, and expresses too much certainty. I kept asking myself, "Surely this is a theory?"
½

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41+ Works 1,555 Members
Robin Dunbar is Professor of Evolutionary Psychology at the University of Oxford and an Emeritus Fellow of Magdalen College. He is an elected Fellow of the British Academy and was co-Director of the British Academy's Centenary Research Project. He is known for the social brain hypothesis, the gossip theory of language evolution, and Dunbar's show more Number (the limit on the number of relationships that we can manage). show less

Common Knowledge

First words
We share a history, you and I.
Last words
(Click to show. Warning: May contain spoilers.)Evolution is truly a marvel, and it was Darwin’s genius to recognise the processes that underpin it.

Classifications

Genres
Science & Nature, Nonfiction, Anthropology, General Nonfiction
DDC/MDS
599.938Natural sciences & mathematicsAnimalsMammalsHomo sapiensGenetics, sex and age characteristics, evolutionEvolution
LCC
HM1033 .D857Social sciencesSociology (General)SociologySocial psychology
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Statistics

Members
166
Popularity
197,684
Reviews
3
Rating
½ (3.28)
Languages
English, Italian
Media
Paper, Ebook
ISBNs
6
ASINs
3