DOGS might be man’s best friend, but only if they are being treated fairly. When a dog thinks it’s getting a raw deal in comparison with other dogs, it quickly expresses its displeasure.
Until now, such overt dislike of unfairness had only been shown in primates, but some scientists had suspected that other species that live cooperatively could also be sensitive to foul play.
To test this theory, Friederike Range’s team at the University of Vienna, Austria, asked 43 trained dogs to extend their paw to a human in various situations.
The animals performed the trick at almost every request,…
