Human-Animal Relationships: The Use of Species-Typical Food Calls and Chimpanzee (Pan troglodytes) Names: Welfare-Oriented Tools to Manage Sanctuary Chimpanzees
In captivity, positive human-animal interactions are often part of daily management procedures, which can enhance the welfare of animals and help caregivers with routine husbandry tasks. For example, the provisioning of food (produce or enrichment) can be an effective tool to reward animals for positive behavior. Another option is to use species-typical behavior to request […]
Who wants food? Individual characteristics in raven yells
Discriminating between different individuals is considered as prerequisite for any forms of social knowledge. In birds, discriminating between conspecifics based on individual characteristics has been tested mainly in the auditory domain with territorial calls and songs for neighbour and kin discrimination but little is known about discriminating between signallers in food calls. Ravens utilize a […]
Chimpanzee food calls are directed at specific individuals
If primates were capable of vocalizing to inform a receiver about an external entity, it would represent an important element of continuity with human language. We tested experimentally whether chimpanzee rough grunts, which function to refer to food, are produced selectively, indicating voluntary control, and whether they are directed at specific individuals. These are prerequisites […]