Social intelligence in Capuchin monkeys (Cebus apella) -- Communication between mother and infant chimpanzees and its role in the evolution of social intelligence -- Primates' use of others' gaze -- How to build a scrub-jay that reads minds -- Cooperation in keas: social and cognitive factors -- Differences between acting as if one is experiencing pain and acting as if one is pretending to have pain among actors at three expertise levels -- Homo negotiatus: ontogeny of the unique ways humans own, share and reciprocate -- Little liars: origins of verbal deception in children -- Discovering ming: development of mentalizing in human children.