By KMAN Staff|2025-05-23T08:09:29-05:00May 23rd, 2025|Categories: Local News, Manhattan|Tags: animal longevity milestones, AZA chimpanzee record, chimpanzee enrichment, Manhattan Kansas zoo news, oldest living chimpanzee, Sunset Zoo chimpanzees, Sunset Zoo events, Susie 71st birthday, Susie chimpanzee birthday, zoo birthday party|Comments Off on Sunset Zoo planning 71st birthday celebration for beloved chimpanzee