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the claim

Hamilton's inclusive fitness theory explains the evolution of altruistic behavior through genetic relatedness.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 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 Hamilton's inclusive fitness theory explains the evolution of altruistic behavior through genetic relatedness?

Yes. Hamilton's inclusive fitness theory successfully accounts for the evolution of altruistic behavior through genetic relatedness, a principle backed by extensive theoretical models and empirical observations of kin-directed cooperation.

Verdict: SUPPORTED · 5 sources for, 0 against · Last checked

The analysis

The retrieved literature consistently supports Hamilton's inclusive fitness and kin selection theory, showing how genetic relatedness drives the evolution of altruism and cooperation across various biological and mathematical frameworks.

Evidence for · 5
Natural selection. <scp>VII</scp>. History and interpretation of kin selection theory
2013
Discusses the historical and causal foundations of kin selection theory, highlighting genetic relatedness as a core driver of social evolution.
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Frank, S. A. (2013). Natural selection. <scp>VII</scp>. History and interpretation of kin selection theory. doi.org. https://doi.org/10.1111/jeb.12131

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More for · 4
The Evolutionary Roots of Familial Altruism: Paternity Uncertainty Shapes Patterns of Kindness.
2025
Demonstrates that genetic relatedness and paternity uncertainty systematically shape patterns of familial kindness, supporting kin selection.
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R, K. & J, F. (2025). The Evolutionary Roots of Familial Altruism: Paternity Uncertainty Shapes Patterns of Kindness.. doi.org. https://doi.org/10.1177/14747049251357493

Extraordinary siblings: Mole rats, marmosets, and Radcliffe-Brown.
2025
Notes that kin selection theory explains extraordinary altruism toward siblings and close kin based on reproductive biology and genetics.
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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

Matrix games between full siblings in Mendelian populations.
2025
Shows that under specific game-theoretic conditions like the donation game, classical Hamilton's rule successfully determines the stability of cooperative 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

The general version of Hamilton's rule.
2025
Develops a general version of Hamilton's rule, affirming its utility in describing how costly cooperation evolves across diverse 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

What does the evidence say?

The retrieved literature consistently supports Hamilton's inclusive fitness and kin selection theory, showing how genetic relatedness drives the evolution of altruism and cooperation across various biological and mathematical frameworks.

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8804 Aug 2026
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