Perea Garcia, J. O.; Miani, A.; Kristian Olsen Alstrup, A.; Malmkvist, J.; Pertoldi, C.; Hammer Jensen, T.; Kruse Nielsen, R.; Witzner Hansen, D.; Bach, L. A. Orangulas: Effect of Scheduled Visual Enrichment on Behavioral and Endocrine Aspects of a Captive Orangutan (Pongo pygmaeus): Effect of Scheduled Visual Enrichment on Behavioral and Endocrine Aspects of a Captive Orangutan. JZAR 2020, 8, 67-72.