Half of Americans (48%) say two is the ideal number of children for a family to have, reflecting a decades-long preference for a smaller family over a larger one.
Ceremonies at Harvard honor scientists who discovered why woodpeckers don’t get headaches, why people dislike the sound of fingernails scraping on a blackboard and how many photos are needed to ensure that no one in the picture has their eyes closed. Plus declining teacher quality and the latest research into shop-a-holics.