How do rhesus monkeys ( Macaca mulatta) scan faces in a visual paired comparison task?
Animal Cognition (2004) - Comment
pubmed: 14745584  doi: 10.1007/s10071-003-0179-6  issn: 1435-9448  issn: 1435-9456 

Katalin M. Gothard, Cynthia A. Erickson, David G. Amaral