Caring for a chimp like Negra, who has serious mobility challenges but still spends time with her group, can be a delicate balancing act. We still want to provide her group mates with the chance to forage outside, but that requires that we serve Negra a special lunch, which can upset the other chimps’ sense of fairness or lead to a temptation to steal from her. We’re fortunate that Negra is high-ranking, but sometimes the other chimps are bold enough to test their luck. No one is taking advantage of Negra on Missy’s watch, though…




