In November 2019, Alessandra Mascaro was observing a community of chimpanzees in the Loango National Park in Gabon as part of her volunteer service with the Ozouga Chimpanzee Project when she noticed some unusual behavior. A chimp named Suzee was inspecting a wound on the foot of her son, Sia. Suzee suddenly caught an insect from a nearby leaf, put it into her mouth for a moment, and then pressed it to Sia’s wound.
Mascaro caught the unusual interaction on video and forwarded it to two scientists on the project: Tobias Deschner, a primatologist with the Ozouga Chimpanzee Project, and Simone Pika, a cognitive biologist at Osnabrück University. The researchers thought the interaction could be suggestive of prosocial behavior among chimpanzees and the capacity for empathy—a question of heated debate in the field—and they spent the next 15 months looking for other examples of this type of wound-treating behavior … read more