The chimpanzees all have different comfort levels when it comes to intensity of play. Jody and Negra, for example, engage in play less frequently and less boisterously than some of the other chimps. When Foxie and Jamie get together, though, they completely let loose. There’s lots of stomping, slapping, and (play) biting. This morning they spent about 20 minutes running around the playroom like maniacs.