Altruistic behavior means being kind and helpful to others without expecting anything in return. It's about caring for others and doing good deeds selflessly. Full definition
Such altruism is sharply distinguished from concern about one's own future, and there has been a strong tendency, continuing to the present, to explain apparently altruistic behavior in terms of a subtler or more indirect form of self - interest. (religion-online.org)
That outcome led to the sustained expression of altruistic behavior within the population. (quantamagazine.org)
«When we manipulate risk perception, we see that two factors influence altruistic behaviors across the two conditions,» she says. (sciencedaily.com)