Using natural travel paths to infer and compare primate cognition in the wild von Janmaat, K, de Guinea, M, Collet, J, Byrne, R, Robira, B, van Loon, E, Jang, H, Biro, D, Ramos-Fernandez, G, Ross, C, Presotto, A, Allritz, M, Alavi, S, Van Belle, S