| Dunbar, R. I. M. (1996). Grooming, gossip and the evolution of language. London: Faber and Faber. |
....factual information to another. It would seem that there is usually little immediate benefit to a speaker in giving declarative information to another. Classic references on the evolution of altruism, though with no reference to language, are Trivers (1971) and Hamilton (1964) Group size Robin Dunbar (1993, 1996) has argued that the typical size of human clans and networks of intimates hovers significantly around the number 150. Briefly, language evolved as a response to the necessity of servicing the enormous number of relationships with other individuals that a group of 150 presents. Bonding by physical ....
Dunbar, Robin I. M., (1996) Grooming, Gossip and the Evolution of Language, London: Faber and Faber.
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Dunbar, R. I. M. (1996). Grooming, gossip and the evolution of language. London: Faber and Faber.
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