, Volume 27, Issue 2, pp 141–150 | Cite as

Japanese macaques (Macaca fuscata) social development: Sex differences in Juvenile behavior

  • G. Gray Eaton
  • Deanne F. Johnson
  • Barbara B. Glick
  • Julie M. Worlein


We have quantitatively documented the development of sex differences in the behavior of juvenile Japanese macaques (1 to 2 years of age). Mothers treated their offspring differently by sex, i.e., mothers of males broke contact with them more frequently than did mothers of females. Juvenile males played more, and mounted other macaques more frequently; juvenile females groomed their mothers more and were also punished by other group members more frequently than were males. Males showed a pattern of decreasing interactions with their mothers, but females increased the frequency of their maternal interactions. These patterns appear to presage the life histories of the sexes. However, comparisons with other species of nonhuman primates indicate that although sex differences in behavior are common, the variability among species severely limits cross-specific generalizations.

Key Words

Macaques Sex differences Development Juveniles Behavior 


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Copyright information

© Japan Monkey Centre 1986

Authors and Affiliations

  • G. Gray Eaton
    • 1
  • Deanne F. Johnson
    • 2
  • Barbara B. Glick
    • 1
  • Julie M. Worlein
    • 1
  1. 1.Oregon Regional Primate Research CenterBeavertonU.S.A.
  2. 2.Rutgers UniversityNew BrunswickU.S.A.

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