A new study of side-blotched lizards in California has revealed the genetic underpinnings of altruistic behavior in this common lizard species, providing new insights into the long-standing puzzle of ...

Each year, nearly 200 individuals in the United States donate one of their kidneys to a total stranger. If you are like many people, your first reaction to hearing this may be that anyone who would ...

Anna Freud, Sigmund Freud's youngest child, became a formidable force within psychoanalysis, focusing on child psychology. Initially a teacher, she switched to an earlier interest, psychoanalysis, ...