Humans appear to be hardwired with a sense of justice. This is perplexing from an evolutionary standpoint, as you would think we were predisposed to seek advantage for ourselves and our families wherever possible. However, a sense of fairness is required for humans to be able to help one another. Human cooperation is based on reciprocal altruism: we help people because they … [Read more...] about Animals Can Sense When They Are Being Treated Unfairly (And They Don’t Like It).