The experiment was elegant in its simplicity. Using a toy lion and a toy zebra, Barrett asked each child, “When the lion sees the zebra, what does the lion want to do?” The results were surprising: 75 percent of the three-year-olds in both groups answered with some variation of “The lion wants to chase/bite/kill the zebra.” (It must be remembered

Bonobo and elephant societies are controlled by strong networks of cooperative females, while the self-centred and uncooperative males are pushed to the sidelines. Though bonobo females are weaker on average than the males, the females often gang up to beat males who overstep their limits.