Moreira, C. M., dos Santos, L. P., Sousa, M. B. C., & Izar, P. (2016). Variation of glucocorticoid metabolite levels is associated with survival demands in immature and reproductive demands in adult wild black capuchins (Sapajus nigritus). International Journal of Psychological Research, 9(2), 20–29. https://doi.org/10.21500/20112084.2303