Kids learn emotions early

It should go without saying that children learn from watching their parents and other adults. But, the extent to which children pick up on and respond to how adults are feeling can be surprising. Kids learn emotions early.

In this classic experiment, described here by its University of Washington participants, a toddler stops playing with toys when an observer is in the room who has said she finds that irritating. The toddler does not want to do something that will make an adult angry.