New Study Says Unfairness Really Ruffles Crows' Feathers

One smart bird Photo by Joachim S. MüllerA new experiment found crows and ravens have a sense of fairness, just like people and dogs. People, primates and dogs all react negatively when others get a better reward for doing the same work. Now a small study has found that crows and ravens dislike unfairness, too--the first time research has shown non-mammals react to inequity. Knowing which animals do and don't seem to notice unfairness (cleaner fish, for example, don't notice) helps scientists […]