Long description

Figure 9 shows (a) an illustration and (b) a photograph of Plotnik’s (2011) co-operative problem-solving task for elephants. The illustration (a) shows two elephants behind a fence, and a food tray that is located on the opposite side of the fence to the elephants. To access the food, both elephants need to pull on the ropes at the same time. The photograph (b) shows a side view of two elephants working together to tackle this co-operative task.