Many times, scientists embark on a study looking for evidence for a particular hypothesis, and in the process, they come across something totally unexpected and different from their original purpose.

Psychologists have been studying personality for a very long time. Thinking about personality as a collection of traits goes all the way back to ancient Greece and Rome, and trait theorists such as ...

Rare genetic traits are features that are uncommon within the general population. They can lead to different observable features or to rare physical abilities. Rare genetic traits are typically ...