''Grooming, Gossip and the Evolution of Language'' is a 1996 book by the anthropologist
Robin Dunbar
Robin Ian MacDonald Dunbar (born 28 June 1947) is a British anthropologist and evolutionary psychologist and a specialist in primate behaviour. He is currently head of the Social and Evolutionary Neuroscience Research Group in the Department ...
, in which the author argues that
language
Language is a structured system of communication. The structure of a language is its grammar and the free components are its vocabulary. Languages are the primary means by which humans communicate, and may be conveyed through a variety of ...
evolved from
social grooming. He further suggests that a stage of this evolution was the telling of gossip, an argument supported by the observation that language is adapted for
storytelling.
Thesis
Dunbar argues that gossip does for group-living humans what manual grooming does for other
primates—it allows individuals to service their relationships and thus maintain their alliances on the basis of the principle: ''if you scratch my back, I'll scratch yours.'' Dunbar argues that as humans began living in increasingly larger
social
Social organisms, including human(s), live collectively in interacting populations. This interaction is considered social whether they are aware of it or not, and whether the exchange is voluntary or not.
Etymology
The word "social" derives from ...
groups, the task of manually grooming all one's friends and acquaintances became so time-consuming as to be unaffordable.
In response to this problem, Dunbar argues that humans invented 'a cheap and ultra-efficient form of grooming'—''vocal grooming.'' To keep allies happy, one now needs only to 'groom' them with low-cost vocal sounds, servicing multiple allies simultaneously while keeping both hands free for other tasks. Vocal grooming then evolved gradually into vocal language—initially in the form of 'gossip'.
Dunbar's hypothesis seems to be supported by the fact that the structure of language shows adaptations to the function of
narration
Narration is the use of a written or spoken commentary to convey a story to an audience. Narration is conveyed by a narrator: a specific person, or unspecified literary voice, developed by the creator of the story to deliver information to the ...
in general.
Criticism
The book has been criticised on the grounds that since words are so cheap, Dunbar's "vocal grooming" would fall short in amounting to an
honest signal
Within evolutionary biology, signalling theory is a body of theoretical work examining communication between individuals, both within species and across species. The central question is when organisms with conflicting interests, such as in sex ...
. Further, the book provides no compelling story for how meaningless vocal grooming sounds might become syntactical
speech.
Critics of Dunbar's theory point out that the very efficiency of "vocal grooming"—the fact that words are so cheap—would have undermined its capacity to
signal honest commitment of the kind conveyed by time-consuming and costly manual grooming.
[Power, C. 1998. Old wives' tales: the gossip hypothesis and the reliability of cheap signals. In J. R. Hurford, M. Studdert Kennedy and C. Knight (eds), ''Approaches to the Evolution of Language: Social and Cognitive Bases.'' Cambridge: Cambridge University Press, pp. 111 29. https://www.academia.edu/24291677/Old_wives_tales_the_gossip_hypothesis_and_the_reliability_of_cheap_] A further criticism is that the theory does nothing to explain the crucial transition from vocal grooming—the production of pleasing but meaningless sounds—to the cognitive complexities of
syntactical speech.
References
{{reflist
1996 non-fiction books
American non-fiction books
Books by Robin Dunbar
English-language books
Evolution of language
Harvard University Press books
Popular science books