Researchers say that bonobos, our closest living relatives, are capable of playing make-believe similar to children. The study used Kanzi, a 44-year-old bonobo, who was trained to identify imaginary objects in pretend scenarios.
The researchers found that Kanzi could distinguish between tangible and imaginary liquids in two experiments. In the first experiment, Kanzi correctly identified which cup contained juice after being presented with two empty cups and pretended to fill one with an empty jug. This showed that Kanzi understood the concept of pretend liquids.
In a second experiment, Kanzi was asked to choose a cup containing real liquid or an empty one, and he chose the correct cup in 14 out of 18 trials. The researchers believe that this suggests Kanzi could distinguish between tangible and imaginary juice.
The ability to make-believe is thought to have evolutionary roots, with scientists suggesting that it may date back to our common ancestor with bonobos. This would mean that humans share this cognitive ability with our closest living relatives, which could be a key part of our shared ancestry.
The study also suggests that the capacity for imaginative thinking is not unique to humans. Researchers found that Kanzi was able to correctly identify the location of an imaginary grape placed in one of two transparent containers, demonstrating his understanding of pretend objects.
However, further research is needed to confirm these findings and determine whether other bonobos without Kanzi's unique rearing and learning environment can also play make-believe.
The researchers found that Kanzi could distinguish between tangible and imaginary liquids in two experiments. In the first experiment, Kanzi correctly identified which cup contained juice after being presented with two empty cups and pretended to fill one with an empty jug. This showed that Kanzi understood the concept of pretend liquids.
In a second experiment, Kanzi was asked to choose a cup containing real liquid or an empty one, and he chose the correct cup in 14 out of 18 trials. The researchers believe that this suggests Kanzi could distinguish between tangible and imaginary juice.
The ability to make-believe is thought to have evolutionary roots, with scientists suggesting that it may date back to our common ancestor with bonobos. This would mean that humans share this cognitive ability with our closest living relatives, which could be a key part of our shared ancestry.
The study also suggests that the capacity for imaginative thinking is not unique to humans. Researchers found that Kanzi was able to correctly identify the location of an imaginary grape placed in one of two transparent containers, demonstrating his understanding of pretend objects.
However, further research is needed to confirm these findings and determine whether other bonobos without Kanzi's unique rearing and learning environment can also play make-believe.