When I’m describing Jody’s personality to new chimp house volunteers, I often say that she’s a totally endearing combination of vulnerable and intimidating. If she thinks you have wronged her in some way, she will not hesitate to tell you so with a mouthful of water in your face. If she’s feeling feisty or on edge, she might try to poke you with her long fingernails. At the same time, if there’s tension in the group and she’s feeling unsure, she often seeks reassurance from her caregivers. And first thing every morning she approaches us and greets us warmly with several seconds of intense, prolonged eye contact. No matter her mood, she has a face I never tire of looking at.