Comparative studies of social behavior in Callicebus and Saimiri: Social looking in male-female pairs

Abstract

Duration of looking at a cagemate was investigated in two primate species, one Callicebus, which in nature forms pair bonds, and the other Saimiri, which does not. Five male-female pairs of each species were observed in their living cages. Callicebus spent significantly more time in both mutual and unilateral looking at cagemates than did Saimiri. © 1976, The Psychonomic Society, Inc.. All rights reserved.