Researchers Have Uncovered a Surprising Ability in Bonobos: Playing Make-Believe Like Children
A groundbreaking study has revealed that bonobos, our closest living relatives, possess the remarkable ability to engage in make-believe play, much like children. Led by Dr. Amalia Bastos and Dr. Christopher Krupenye from the University of St Andrews and Johns Hopkins University, respectively, the team conducted an experiment with a 44-year-old bonobo named Kanzi.
In their study published in Science, Bastos and Krupenye trained Kanzi to point to containers filled with juice by rewarding him for doing so. They then presented him with two empty transparent cups and pretended to fill them with an empty jug, asking Kanzi to identify which cup contained juice. To the researchers' surprise, Kanzi correctly identified the "full" cup in 34 out of 50 trials.
What's more remarkable is that Kanzi was not rewarded for the correct answer, indicating he wasn't simply learning a desired response based on human physical motions. The researchers also tested whether Kanzi believed a real liquid was being poured into the cups and found that he chose the cup containing actual juice in 14 out of 18 trials.
Furthermore, the team discovered that Kanzi could correctly identify the location of an imaginary grape placed in one of two transparent containers. This finding provides strong evidence that bonobos can follow imaginary objects in pretend scenarios, challenging the notion that make-believe play is uniquely human.
Dr. Zanna Clay from Durham University, who was not involved in the study, emphasized the significance of this discovery, stating that it's striking to see our closest living relatives exhibiting advanced cognitive abilities and social skills. He noted that it would be more surprising if we found similar abilities in more distantly related species with less divergent social and cognitive traits.
The researchers' findings suggest that the capacity for representing pretend objects is shared across primates, dating back to a common ancestor that lived between 6-9 million years ago. This groundbreaking study opens up new avenues of research into the cognitive and social abilities of non-human animals, shedding light on our evolutionary past and the complex behaviors that have shaped our relationships with other species.
A groundbreaking study has revealed that bonobos, our closest living relatives, possess the remarkable ability to engage in make-believe play, much like children. Led by Dr. Amalia Bastos and Dr. Christopher Krupenye from the University of St Andrews and Johns Hopkins University, respectively, the team conducted an experiment with a 44-year-old bonobo named Kanzi.
In their study published in Science, Bastos and Krupenye trained Kanzi to point to containers filled with juice by rewarding him for doing so. They then presented him with two empty transparent cups and pretended to fill them with an empty jug, asking Kanzi to identify which cup contained juice. To the researchers' surprise, Kanzi correctly identified the "full" cup in 34 out of 50 trials.
What's more remarkable is that Kanzi was not rewarded for the correct answer, indicating he wasn't simply learning a desired response based on human physical motions. The researchers also tested whether Kanzi believed a real liquid was being poured into the cups and found that he chose the cup containing actual juice in 14 out of 18 trials.
Furthermore, the team discovered that Kanzi could correctly identify the location of an imaginary grape placed in one of two transparent containers. This finding provides strong evidence that bonobos can follow imaginary objects in pretend scenarios, challenging the notion that make-believe play is uniquely human.
Dr. Zanna Clay from Durham University, who was not involved in the study, emphasized the significance of this discovery, stating that it's striking to see our closest living relatives exhibiting advanced cognitive abilities and social skills. He noted that it would be more surprising if we found similar abilities in more distantly related species with less divergent social and cognitive traits.
The researchers' findings suggest that the capacity for representing pretend objects is shared across primates, dating back to a common ancestor that lived between 6-9 million years ago. This groundbreaking study opens up new avenues of research into the cognitive and social abilities of non-human animals, shedding light on our evolutionary past and the complex behaviors that have shaped our relationships with other species.