It sounds like a fable. I know that primates are smarter than other animals but I doubt that without some strong negative association they would be able to keep up that convention when there's an obvious prize right there, especially if they got hungry.
It sounds like a fable. I know that primates are smarter than other animals but I doubt that without some strong negative association they would be able to keep up that convention when there's an obvious prize right there, especially if they got hungry.