Souza-Alves, J., Young, R., & Barnett, A. (2019). Terrestrial behavior in titi monkeys (Callicebus, Cheracebus, and Plecturocebus) : potential correlates, patterns, and differences between genera. International Journal of Primatology, 40, 553-572. https://doi.org/10.1007/s10764-019-00105-x