I’ve just found on CNN.com an article exploring in more depth the research I mentioned in yesterday’s post, which involves primatologist Frans de Waal and other scientists exploring through the study of chimpanzees whether humans are uniquely fair: You might think of “morality” as special for humans, but there are elements of it that are found in the animal kingdom, says de Waal — namely, fairness and reciprocity. His latest study, published this week in the journal Proceedings of the National Academy of Sciences, suggests that chimpanzees may show some of the same sensibility about fairness that humans do. The popular belief that the natural world is based on competition is a simplification, de Waal says. The strength of one’s immune system, and the ability…