We discuss various features of the trajectories of spider monkeys looking for food in a tropical forest, as observed recently in an extensive {\it in situ} study. Some of the features observed can be interpreted as the result of social interactions. In addition, a simple model of deterministic walk in a random environment reproduces the observed angular correlations between successive steps, and in some cases, the emergence of L\'evy distributions for the length of the steps.
Cite
@article{arxiv.cond-mat/0311252,
title = {Modeling the Searching Behavior of Social Monkeys},
author = {D. Boyer and O. Miramontes and G. Ramos-Fernández and J. L. Mateos and G. Cocho},
journal= {arXiv preprint arXiv:cond-mat/0311252},
year = {2009}
}