Altruism (biology)
Altruism (biology)
Behaviour that increases the fitness of another while decreasing the fitness of self.
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Readers' pathsAug 2026 – Oct 2026
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Social grooming
Behavior in social animals.
12%
Altruism
Concern for the well-being of others.
8.1%
Mongoose
Family of mammals in Africa and Asia.
4.6%
Kin selection
Evolutionary strategy favoring relatives.
4.5%
Koinophilia
Hypothesis on normative mate selection.
4%
Reciprocal altruism
Form of behaviour between organisms.
3.8%
Przewalski's horse
Subspecies of mammal.
3.8%
Florida scrub jay
Species of bird.
3.8%
Humpback whale
Large baleen whale species.
1.8%
Vervet monkey
Species of Old World monkey.
1.1%
Readers come from
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Binti Jua
Western gorilla, Brookfield Zoo, b. 1988.
23%
Altruism
Concern for the well-being of others.
15%
Domestication of the dog
Process which formed the domestic dog.
13%
Meerkat
Species of mongoose from Southern Africa.
8.3%
Kin selection
Evolutionary strategy favoring relatives.
6.9%
Suicide
Intentional act causing one's own death.
3.3%
Emotion in animals
3.2%
Worker policing
Insects destroying eggs not laid by queen.
2.8%
Friendship
Mutual affection between people.
2.7%
Eyam
Village and civil parish in Derbyshire Dales district, Derbyshire, England.
2.3%