Sunset Zoo mourns Susie, 71, the world’s oldest female chimp in captivity, who died after a health decline.

Sunset Zoo has announced the passing of Susie, a 71-year-old Western chimpanzee and the oldest female in human care, who died after a decline in health. Born in 1954, she arrived at the zoo in 1974 and lived more than 30 years past the typical wild chimpanzee lifespan. Euthanized following veterinary evaluation, Susie was known for her playful spirit and love of popcorn. She is survived by two daughters and four troop members, and her legacy includes contributions to conservation and public awareness. The zoo urges support for chimpanzee protection amid ongoing threats like habitat loss and poaching.