Dogs and monkeys prefer good people

摘要

BE NICE - or your pooch may judge you. Both pet dogs and monkeys show a preference for people who help others, and the results might explain the origins of our sense of morality. By the age of 1, humans already start to judge others by how they interact. This has led to suggestions that children have a kind of innate morality that predates their being taught how to behave. Comparative psychologist James Anderson at Kyoto University in Japan and his colleagues wondered whether other species make social evaluations in a similar way.