kin selection
Noun
Meaning
kin selection (uncountable)
(biology) An evolutionary strategy that favors an individual organism's close kin over itself.
Examples
Kin selection was originally developed to explain apparent altruistic acts which seemed to be maladaptive.
Kin selection explains altruism through genetic relationships, whereby an altruistic behaviour leading to death is rewarded by the survival of genetic copies distributed among surviving relatives.