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Even four-month-old infants expect adults to comfort crying babies. The finding suggests that we may be born with a foundation of morality that becomes the basis for more advanced moral and social behaviour in later life.
Psychologists have long debated whether moral behaviour is innate or learned. In 2007, Kiley Hamlin and colleagues at Yale University found that 6-month-old and 10-month-old babies prefer people who help others, and show an aversion to those who don’t.
But to understand how we develop our moral …