Almost everyone is familiar with the placebo effect. Patients who believe they have received an effective remedy tend to feel better and show improvement, even when the remedy is a sham treatment or ...

Scientists once thought that all animal behavior was instinctual, but now know that many animals — particularly social animals — are able to think and to learn, and to display culturally learned ...

In some parts of the world, the rules are strict; in others they are far more lax. In some places, people are likely to plan for the future, while in others people are more likely to live in the ...