Chen, EmmaPipolo, GiuliaCrailsheim, DietmarMorimoto Borges, Juliano2025-03-262025-03-262025-01-01Chen, E, Pipolo, G, Crailsheim, D & Morimoto Borges, J 2025, 'The lasting impact of social isolation : behavioral insights from former pet and entertainer chimpanzees in a sanctuary in Spain', American Journal of Primatology, vol. 87, no. 1, e23715. https://doi.org/10.1002/ajp.237150275-2565https://hdl.handle.net/2164/25209Acknowledgments We thank all the students and researchers at Fundación MONA who participated in the behavioral observations. We extend our gratitude to the education team and the keepers at the sanctuary, who supported this study and who take great care of the chimpanzees every day. We also wish to thank two anonymous reviewers and the editor Dr Jennifer Vonk for comments on the earlier versions of this manuscript.10649810enganimal behaviorearly life experienceprimateswelfareQH301 BiologySupplementary InformationSupplementary DataDASQH301Journal article10.1002/ajp.23715871