Revolutionary monkey?

It seems that some monkeys can have a strong sense of fairness and equality.  See what happens with this capuchin monkey reacts to when he sees that equal effort is not rewarded equally…

 

And after some laughs, here is the full video.  Empathy, cooperation, fairness and reciprocity — caring about the well-being of others seems like a very human trait. But Frans de Waal shares some surprising videos of behavioral tests, on primates and other mammals, that show how many of these moral traits all of us share.Very interesting:

 

(seen on Marginal Revolution)