When people reach for the same object, walk through a narrow doorway, forage for food, or work together on a shared task, they continuously negotiate—often without noticing—how much to cooperate or ...

Friends or foes? During social interactions, the ability to infer others' intentions is crucial for predicting their actions and determining whether to cooperate or compete. A new study highlights the ...

The Dyadic Interaction Platform at the German Primate Center, with two participants playing the Cooperation-Competition Foraging game. Photo: Thorge Beilfuß. When people reach for the same object, ...