In-Group Conformity Sustains Different Foraging Traditions in Capuchin Monkeys (Cebus apella) Dindo, Marietta ; Whiten, Andrew ; de Waal, Frans B. M. Abstract Publication: PLoS ONE Pub Date: November 2009 DOI: 10.1371/journal.pone.0007858 Bibcode: 2009PLoSO...4.7858D