|| Cooperation, defined as a behaviour that is beneficial to another individual or to several individuals involved in a task, is characteristic for humans, but also for domestic dogs. Indeed, dogs were likely selected by humans through domestication to be good cooperative partners and have evolved human-like skills for functioning efficiently in human societies. The success of cooperative activities depends to a large extent on communication via a range of deictic cues such as speech, pointing, or gaze. The aim of this project is to study dog-human cooperation and prosocial behaviour, considering both members of the dog-human dyad. In particular, we will explore communicative, cognitive, motivational and developmental aspects of dog cooperation. We want to (1) describe in detail how dogs and humans communicate with each other in order to cooperate successfully; (2) investigate the degree to which dogs understand others’ intentions and are actually motivated to support humans through cooperative behaviour and (3) examine the influence of ontogeny and domestication on cooperative and prosocial behaviour, by comparing performance of family dogs with specially trained dogs, and of dogs with wolves.