New research shows that family ties and traits such as manipulation, sacrifice and selflessness are just as key to survival in parasitic organisms as they are in cognitive species like humans. In ...

Below we list a few examples of what has been learned from applying kin selection theory—there are thousands of others. (1) Organisms overwhelmingly direct costly assistance, and all true altruism, ...

A battle is being waged over kin and kind: Did cooperation evolve in humans and other animals because it helped relatives? Or because it promoted group living? A school of thought known as inclusive ...

DR. MAYNARD SMITH'S communication raises a good many more questions than I can attempt to answer here. The major obstacle to constructive discussion between us really arises from the understandable ...