Dunbar, R.LM. (1982'Adaptation, fitness and the evolutionary tautology', in King's College Sociobiology Group (eds) Current Problems in Sociobiology, pp. 9-18. Cambridge: Cambridge University Press.
2.
Dunbar, R.I.M. (1995) The Trouble with Science. London: Faber & Faber.
3.
Gould, S.J. and E.S. Vrba (1982) 'Exaptation—a missing term in the science of form', Palaeobiology8: 4-15.
4.
Ingold, T. (1990) 'An anthropologist looks at biology', Man (N.S.)25: 208-29.
5.
Ingold, T. (1995) 'People Like Us: The Concept of the Anatomically Modern Human', Cultural Dynamics7(2): 187-214.
6.
Stephens, D.W. and J.R. Krebs (1986) Foraging Theory. Princeton, NJ: Princeton University Press.
7.
Tinbergen, N. (1963) 'On the aims and methods of ethology', Zeitschrift fur Ethologie20: 410-33.
