What does it mean to be human? We are, at our core, social mammals. We build relationships, communicate, reproduce, establish territories, and adapt to shrinking resources. In these ways, we’re no different from other social mammals. Chimpanzees, wolves, and gorillas are among the most charismatic mammals we know. We identify with them as species, groups, and even as named individuals. All social mammals live in groups to achieve together what they cannot do alone. Join biologist-turned-photographer Ronan Donovan as he shares what he’s learned documenting these animals, and the insights he believes we—as fellow social mammals—can learn from our wild kin.