For decades, imagination was treated as a uniquely human trait, the mental ability to picture objects, events, or scenarios that do not physically exi.

ANIMAL-TESTING LATEST — The Trump administration got one step closer to its goal of reducing federally funded primate testing ...

The ability to imagine — to play pretend — has long been thought to be unique to humans. A new study suggests one of our closest living relatives can do it too.

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

The Republican president's Thursday night post immediately drew backlash for its treatment of the nation's first Black ...

The ability to imagine -- to play pretend -- has long been thought to be unique to humans. A new study suggests certain apes may be able to as well.