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the claim

Altruistic self-sacrifice provides an evolutionary advantage through kin selection

the verdict
SUPPORTED
the evidence backs this
Recorded sources
6 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Altruistic self-sacrifice provides an evolutionary advantage through kin selection?

Yes. Multiple theoretical studies and evolutionary models confirm that altruistic behavior toward genetic relatives can provide an evolutionary advantage through mechanisms of kin selection and inclusive fitness, as formalized by Hamilton's rule.

Verdict: SUPPORTED · 6 sources for, 0 against · Last checked

The analysis

The retrieved literature consistently supports the concept that kin selection provides an evolutionary advantage for altruistic behaviors. Papers such as [4], [6], and [10] explicitly model familial selection, survival cost sharing, and general versions of Hamilton's rule, showing conditions under which altruism is evolutionarily stable. Other papers like [0], [1], and [7] frame inclusive fitness and kin selection as foundational to understanding altruism and cooperation among relatives. There is no evidence in the provided set refuting the claim.

Evidence for · 6
Direct fitness or inclusive fitness: how shall we model kin selection?
2006
Discusses direct fitness and inclusive fitness formulations in kin selection models.
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TAYLOR, P. D., WILD, G., & GARDNER, A. (2006). Direct fitness or inclusive fitness: how shall we model kin selection?. doi.org. https://doi.org/10.1111/j.1420-9101.2006.01196.x

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More for · 5
Inclusive Fitness and Kin Selection
2024
Focuses on inclusive fitness and kin selection as the shared foundations for explaining seemingly puzzling phenomena like eusociality and altruism.
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Rubin, H. (2024). Inclusive Fitness and Kin Selection. doi.org. https://doi.org/10.1017/9781009019644

Survival cost sharing among altruistic full siblings in Mendelian population.
2024
Examines familial selection and survival cost sharing among altruistic full siblings under Hamilton's rule.
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J, G., I, L., Z, V., V, C., & TF, M. (2024). Survival cost sharing among altruistic full siblings in Mendelian population.. doi.org. https://doi.org/10.1186/s12862-024-02317-z

Matrix games between full siblings in Mendelian populations.
2025
Integrates evolutionary matrix game theory to model familial selection and conditions for stability of cooperator populations.
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J, G., T, V., V, C., TF, M., & A, S. (2025). Matrix games between full siblings in Mendelian populations.. doi.org. https://doi.org/10.1371/journal.pone.0331044

Extraordinary siblings: Mole rats, marmosets, and Radcliffe-Brown.
2025
Notes that according to kin selection theory, organisms showing altruism toward kin may enjoy an evolutionary advantage.
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D, J. (2025). Extraordinary siblings: Mole rats, marmosets, and Radcliffe-Brown.. doi.org. https://doi.org/10.1371/journal.pone.0319385

The general version of Hamilton's rule.
2025
Derives general versions of Hamilton's rule to accurately describe when costly cooperation evolves in various circumstances.
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M, v. V. (2025). The general version of Hamilton's rule.. doi.org. https://doi.org/10.7554/elife.105065

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What does the evidence say?

The retrieved literature consistently supports the concept that kin selection provides an evolutionary advantage for altruistic behaviors. Papers such as [4], [6], and [10] explicitly model familial selection, survival cost sharing, and general versions of Hamilton's rule, showing conditions under which altruism is evolutionarily stable. Other papers like [0], [1], and [7] frame inclusive fitness and kin selection as foundational to understanding altruism and cooperation among relatives. There is no evidence in the provided set refuting the claim.

Receipt History
first checked06 Aug 2026
judged → SUPPORTED · 8806 Aug 2026
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