title: Token mediated tool exchange between tufted capuchin monkeys (Cebus apella).
abstract: Three experiments were conducted to test whether a pair of tufted capuchin monkeys (Cebus apella) could generalize their ability to exchange tokens and tool objects with a human experimenter to similar exchanges with a conspecific partner. Monkeys were tested in side-by-side enclosures, one enclosure containing a tool-use apparatus and one or more token(s), and the other enclosure containing one or more tool object(s). The monkeys willingly transferred tokens and tools to a conspecific with little practice. Following a small amount of training, we also found that the monkeys would select situation-appropriate tokens to exchange for specific tools, but did not select appropriate tool objects in response to another monkey's token transfers. Implications regarding role reversal are discussed.
authors.affiliation: Alpha Genesis, Inc., 95 Castle Hall Road, P.O. Box 557, Yemassee, SC 29945, USA.
authors.forename: Gregory Charles
authors.initials: GC
authors.lastname: Westergaard
authors.forename: Theodore Avery
authors.initials: TA
authors.lastname: Evans
authors.forename: Sue
authors.initials: S
authors.lastname: Howell
mesh_terms: D000819:Animal Communication; D000818:Animals; D001245:Association Learning; D002428:Cebus / Q000523:psychology*; D005793:Generalization, Psychological; D006801:Humans; D008297:Male; D053001:Tool Use Behavior