In biology, altruism refers to behaviour by an individual that increases the fitness of another individual while decreasing their own. Altruism in this...

In evolutionary biology, reciprocal altruism is a behaviour whereby an organism acts in a manner that temporarily reduces its fitness while increasing...

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...

communication – seek shelter – migration (ecology) Fixed action pattern Altruism (biology) Outline of ecology Ecosystems: Ecology – Biodiversity – habitat –...

Competitive altruism is a possible mechanism for the persistence of cooperative behaviors, specifically those that are performed unconditionally. The theory...

green-beard effect is a thought experiment used in evolutionary biology to explain selective altruism among individuals of a species. The idea of a green-beard...

Parochial altruism is a concept in social psychology, evolutionary biology, and anthropology that describes altruism towards an in-group, often accompanied...

2007). "Social semantics: altruism, cooperation, mutualism, strong reciprocity and group selection". Journal of Evolutionary Biology. 20 (2): 415–432. doi:10...

Thompson, G. J.; Hurd, P. L.; Crespi, B. J. (2013). "Genes underlying altruism". Biology Letters. 9 (6): 20130395. doi:10.1098/rsbl.2013.0395. PMC 3871336...

to explain the evolutionary mechanics behind social behaviors such as altruism, aggression, and nurturance, primarily in ants (Wilson's own research specialty)...

significance, but it's completely different from the altruism in biological sciences. In evolutionary biology, altruism is an individual behavior that benefits another...

are associated with general mental ability, head circumference or altruism". Biology Letters. 3 (2): 157–60. doi:10.1098/rsbl.2006.0586. PMC 2104484. PMID 17251122...

2007). "Social semantics: altruism, cooperation, mutualism, strong reciprocity and group selection". Journal of Evolutionary Biology. 20 (2): 415–432. doi:10...

cooperative. If not, the agent is not. This is similar to reciprocal altruism in biology. Tit-for-tat has been very successfully used as a strategy for the...

species. Altruism (biology) Animal sexual behaviour Biological pump – interaction between marine animals and carbon forms Cheating (biology) Collective...

The history of biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose...

sharing, comforting, rescuing and helping). Altruism is distinguished from helping behavior in this way: Altruism refers to prosocial behaviors that are carried...

are associated with general mental ability, head circumference or altruism". Biology Letters. 3 (2): 157–60. doi:10.1098/rsbl.2006.0586. PMC 2104484. PMID 17251122...

(2000). "Population viscosity and the evolution of altruism" (PDF). Journal of Theoretical Biology. 204 (4): 481–496. Bibcode:2000JThBi.204..481M. CiteSeerX 10...

life to save the rest of the group. These behaviours may be examples of altruism. Not all behaviours are altruistic, as indicated by the table below. For...

and altruism (when one member of a species aids another) in biology. Examples of altruism in animals include kin selection and reciprocal altruism. Douglas...

"purpose" in writing The Selfish Gene is "to examine the biology of selfishness and altruism." He does this by supporting the claim that "gene selfishness...

and evolutionary representation of altruism. He also pioneered the application of game theory to evolutionary biology, in a co-authored 1973 paper with...

"Human-like altruism shown in chimpanzees". Science Daily. June 25, 2007. Retrieved August 11, 2007. Bradley, B. (1999). "Levels of selection, altruism, and...

Thompson GJ, Hurd PL, Crespi BJ (23 December 2013). "Genes underlying altruism". Biology Letters. 9 (6): 20130395. doi:10.1098/rsbl.2013.0395. PMC 3871336...

The altruism theory of voting is a model of voter behavior which states that if citizens in a democracy have "social" preferences for the welfare of others...

aid, sympathy and empathy, direct and indirect reciprocity, altruism and reciprocal altruism, conflict resolution and peacemaking, deception and deception...

The relationship between biology and sexual orientation is a subject of on-going research. While scientists do not know the exact cause of sexual orientation...

viewpoint argue that it permits understanding of diverse phenomena such as altruism and intragenomic conflict that are otherwise difficult to explain from...

– allele frequency – allochronic speciation – allopatric speciation – altruism – anagenesis – anti-predator adaptation – applications of evolution – apomorphy...