Fack, V. et al. 2018. Observation of snake (Colubridae) predation by yellow-tailed woolly monkeys (Lagothrix flavicauda) at El Toro study site, Peru. Neotropical Primates. 24, 2 (Dec. 2018), 79–82. DOI:https://doi.org/10.62015/np.2018.v24.102.