Tool use in wild capuchin monkeys (Cebus albifrons trinitatis ).

White-fronted capuchins were observed to use leaves as cups to retrieve water from tree cavities. On multiple occasions several individuals performed this behavior. Thus, these capuchins engage in habitual tool use, as defined by McGrew's classificatory scheme of tool using behavior. Am. J. Primatol. 46:259–261, 1998. © 1998 Wiley-Liss, Inc. [ABSTRACT FROM AUTHOR]