Baboon vocalizations as measures of psychological well-being (1993)

Crowell Comuzzie, D. K.

Abstract

Increased grunting was associated with environmental enrichment [radio, food treats]. Thus vocalizations may provide a useful tool for evaluating enrichment programs designed to promote baboon, and perhaps other nonhuman primate, psychological well-being. ... With minimal training, caregivers can learn to use vocal signals to evaluate animal welfare.