Diversity of Nutcracking Tool Sites Used by Sapajus libidinosus in Brazilian Cerrado - Mendes, Francisco Dyonisio Cardoso; Cardoso, Raphael Moura; Ottoni, Eduardo Benedicto; Izar, Patricia; Villar, Daniell Nunes A.; Marquezan, Rogério F. (American Journal of Primatology, 2015)