Behavior Systems Approach to Object Play: Stone Handling Repertoire as a Measure of Propensity for Complex Foraging and Percussive Tool Use in the Genus Macaca by Amanda N. Pelletier, Tatjana Kaufmann, Sidhesh Mohak, Riane Milan, Charmalie A. D. Nahallage, Michael A. Huffman, Noëlle Gunst, Aida Rompis, I Nengah Wandia, I Gusti Agung Arta Putra, Sergio M. Pellis, Jean-Baptiste Leca

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