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Olive baboons grooming. In biology, altruism refers to behaviour by an individual that increases the fitness of another individual while decreasing their own. [1] Altruism in this sense is different from the philosophical concept of altruism, in which an action would only be called "altruistic" if it was done with the conscious intention of helping another.
Altruism is the principle and practice of concern for the well-being and/or happiness of other humans or animals above oneself. While objects of altruistic concern vary, it is an important moral value in many cultures and religions. It may be considered a synonym of selflessness, the opposite of selfishness. [1]
The concept of "reciprocal altruism", as introduced by Trivers, suggests that altruism, defined as an act of helping another individual while incurring some cost for this act, could have evolved since it might be beneficial to incur this cost if there is a chance of being in a reverse situation where the individual who was helped before may perform an altruistic act towards the individual who ...
In humans, altruism is both more likely and on a larger scale with kin than with unrelated individuals; for example, humans give presents according to how closely related they are to the recipient. In other species, vervet monkeys use allomothering , where related females such as older sisters or grandmothers often care for young, according to ...
Reciprocal altruism in humans. Reciprocal altruism in humans refers to an individual behavior that gives benefit conditionally upon receiving a returned benefit, which draws on the economic concept – ″gains in trade″. [1] Human reciprocal altruism would include the following behaviors (but is not limited to): helping patients, the wounded ...
Adaptive behavior (ecology) In behavioral ecology, adaptive behavior is any behavior that contributes directly or indirectly to an individual's reproductive success, and is thus subject to the forces of natural selection. [1] Examples include favoring kin in altruistic behaviors, sexual selection of the most fit mate, and defending a territory ...
Parochial altruism is a concept in social psychology, evolutionary biology, and anthropology that describes altruism towards an in-group, often accompanied by hostility towards an out-group. [1] It is a combination of altruism, defined as behavior done for the benefit of others without direct effect on the self, and parochialism, which refers ...
Mutual Aid: A Factor of Evolution is a 1902 collection of anthropological essays by Russian naturalist and anarchist philosopher Peter Kropotkin.The essays, initially published in the English periodical The Nineteenth Century between 1890 and 1896, [1] explore the role of mutually beneficial cooperation and reciprocity (or "mutual aid") in the animal kingdom and human societies both past and ...