Kin selection

Kin selection is a concept in evolutionary biology that explains how behaviors that help relatives can increase the chances of shared genes being passed on. When an individual assists family members—like protecting siblings or helping raise offspring—they enhance the survival and reproductive success of those relatives. This, in turn, helps ensure that more of their shared genetic material is transmitted to future generations. Essentially, by supporting those closely related, individuals can indirectly promote their own genetic legacy, highlighting the importance of family ties in the natural world.