Crook, J. H., 1964, The evolution of social organization and visual communication in the weaver birds (Ploceinae): Behaviour, v. 10, p. 1-78.

---, 1965, The adaptive significance of avain social organization, in Ellis, P. E., ed., Social Organization of Animal Communities: London, Zoological Society of London, v. 14, p. 181-218.

---, 1972, Sexual selection, dimorphism, and social organization in the primates, in Campbell, B. G., ed., Sexual Selection and the Descent of Man (1871-1971): Chicago, Aldine-Atherton, p. 231-281.

Kidd, B., 1894, Social evolution: Londan/New York, Macmillan & Co.

Kruuk, H., 1972, The Spotted Hyena: A Study of Predation and Social Behavior: Chicago, University of Chicago Press.

Ostrom, J. H., 1972, Were some dinosaurs gregarious?: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 11, p. 287-301.

---, 1986, Social and Unsocial Behavior in Dinosaurs, in Evolution of Animal Behavior: Oxford, Oxford University Press, p. 41-61.

[Return to A Keyword-Indexed Origins Bibliography]

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