Sunset Zoo mourns the loss of Susie, the longest-living chimp in captivity Diana Piedra, staff writer • November 5, 2025 Susie, the oldest female chimpanzee in human care, passed away on Oct. 29. She was born in 1954 and arrived at the Sunset Zoo 20 years later in 1974, spending the rest of her life in the zoo’s care. For...
