Nicole Karlis explains the cutting-edge science of generosity and the benefits of altruism for building resilience and ...

Related: How to Stop Being Selfish Everyday life is filled with small acts of altruism, from holding the door for strangers ...

Evolutionary biologists and animal behaviorists have sought to identify the mechanisms that can explain what some have called the “problem of altruism.” Natural selection operates against ...

This discovery suggests that the instinct to help may be more widespread in the animal kingdom than previously thought. Altruism, often considered a typically human characteristic, may in fact have ...

Reciprocal altruism occurs where the roles of the donor and recipient are later reversed. This often occurs in social animals. For example, vampire bats feed only on blood. An individual cannot ...