Image via WikipediaThe traits of cooperation and fairness are the bedrocks of human social organizations. There has recently been lots of interest in the origin of these traits.
Are these traits are unique to human? Probably not. Here is a BBC video that demonstrate both of these traits in monkeys. The first part of video narrated by famous Richard Attenborough shows cooperation between two monkey subjects while the latter half of the video shows a sense of fair play between two monkeys.