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Prof. Susan Perry
and I have been studying white-faced capuchins in and near Lomas Barbudal
Biological Reserve, Costa
Rica, since 1990. Projects on which
I have taken a leading role include studies of nonconceptive sexual behavior,
long-term stability and change in female-female social relationships, infant
handling ("allomothering"), self-directed behavior, time-matched
female-female grooming, reconciliation, infanticide and lethal aggression
among adult males. Currently, we are in the fifth year of a
continuous study of infant and juvenile development designed to clarify the
role of social learning in the acquisition of foraging, social and
anti-predator behaviors. With collaborators at the Max Planck Institute for Evolutionary
Anthropology, we have genotyped almost all our subjects, and are now
examining patterns of paternity and kin-biased social behavior.
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