For decades, imagination was treated as a uniquely human trait, the mental ability to picture objects, events, or scenarios that do not physically exist. From storytelling and pretend play to abstract ...

Ilia Ivanov was determined to find a way to hybridize humans and chimps, but the idea never should’ve made it beyond science ...

In a series of tea party-like experiments, Johns Hopkins University researchers demonstrated for the first time that apes can use their imagination and play pretend, an ability thought to be uniquely ...

The ability to imagine things that aren't real is a fundamental part of the human experience. Scientists have long suspected some animals also have the ability to imagine and play pretend. NPR's Nate ...

This undated photo provided by the Ape Initiative shows Kanzi, a bonobo who learned to communicate with humans, in Des Moines, Iowa. (Ape Initiative via AP) This undated photo provided by the Ape ...