A bonobo demonstrated the ability to track imaginary objects in controlled tests, challenging the belief that imagination is uniquely human and hinting at deep evolutionary roots. In a set of ...

Kanzi, a remarkable bonobo, displayed symbolic pretend play by tracking imaginary juice in controlled experiments.

Can animals play pretend? It took a tea party with a bonobo to find out. In a set of experiments, a team of researchers offered a bonobo named Kanzi invisible juice and grapes, presenting the tests as ...

Like humans, some bonobos cooperate with members of other social groups, even when they don’t receive immediate benefits in return. This finding, published Thursday in the journal Science, may offer ...

A lot of human society requires what’s called a “theory of mind”—the ability to infer the mental state of another person and adjust our actions based on what we expect they know and are thinking. We ...