Abstract
The present study was carried out to determine if facial and vocal recognition of familiar individuals and vocal-to-facial matching of familiar individuals occurred in common chimpanzees. The matching of different facial portraits and “pant hoot” vocalizations correctly to an array of six facial portraits of familiar individuals randomly sorted from trial-to-trial occurred at greater than chance levels, p >.026. By correctly matching individual chimpanzee faces and vocalizations, the chimpanzees demonstrated their ability to recognize familiar facial configurations and long-distance vocalizations and match these across modes of sensation, prerequisites for monitoring the location and state of fellow group members and avoiding aggressive interactions with less related strangers.
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