Researchers offered a bonobo named Kanzi imaginary juice and grapes, presenting the tests as a kind of make-believe tea party ...

In a playtime experiment, scientists found that apes, our closest living relatives, have the capacity for make-believe, too.

A new experiment hints that an ape may be able to play pretend like humans do. Scientists studied a bonobo named Kanzi who was raised in captivity and became a whiz at communicating with humans using ...

Kanzi, a bonobo with exceptional language skills, took part in a make-believe tea party that demonstrated cognitive abilities ...