The Role of Brain Maturation in the Evolution of the Primates

  • George A. Sacher


In 1959 I showed a close allometric relationship between the maximum lifespans for captive extant mammalian species and their adult brain weights and body weights (Sacher, 1959). The same quantitative relationship was later found to hold within individual taxa as diverse as the Rodentia (Sacher, unpublished), the Odontoceti (Sacher, 1981), and, in particular, the Haplorhini (Sacher, 1975).


Brain Size Growth Trajectory Brain Weight Brain Growth Reproductive Investment 
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Copyright information

© Plenum Press, New York 1982

Authors and Affiliations

  • George A. Sacher
    • 1
  1. 1.Division of Biological and Medical ResearchArgonne National LaboratoryArgonneUSA

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