As humans have wondered about their own capacities for thought and imagination, so too have they wondered about the mental faculties of animals. What is the inner life of, say, a lower primate like?

Remember childhood tea parties? The cups are empty, the teapot is dry, yet the air is thick with the drama of imagined pouring, sipping, and spilling. The mental gymnastics required to participate in ...

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 ...

A new study of our two closest living relatives finds that, at least in zoos, bonobos may not be more peaceful than ...

Having a tea party with a bonobo sounds fun.