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FIG. 24.7 Increase in brain size (as inferred from fossil cranium volume) over 3 million years. Data from T. Deacon, “The Human Brain,” pp. 115–123, in J. Jones, R. Martin, and D. Pilbeam (eds.), 1992, The Cambridge Encyclopedia of Human Evolution, Cambridge, England: Cambridge University Press.
Data from T. Deacon, “The Human Brain,” pp. 115–123, in J. Jones, R. Martin, and D. Pilbeam (eds.), 1992, The Cambridge Encyclopedia of Human Evolution, Cambridge, England: Cambridge University Press.