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person1920s-1964

J.B.S. Haldane

Disciplines:
biology
biology/genetics

Summary

British-Indian geneticist and polymath who was one of the founders of population genetics and the modern evolutionary synthesis — combining Mendelian genetics with Darwinian evolution.

Core Contribution

Population genetics: mathematical treatment of evolution by natural selection operating on Mendelian genes — one of the three founders (with Fisher and Wright) of the mathematical synthesis. The Causes of Evolution (1932): integrated Mendelian genetics with natural selection. Kin selection: first mathematical treatment of the genetics of altruism (before Hamilton formalized it). Famous remark about God and beetles.

Key Spikes & Highlights

  • When a theologian asked what evolution implied about God's nature, Haldane replied that God must have 'an inordinate fondness for beetles' — beetles constitute ~25% of all known animal species.
  • Was a committed Marxist who defended Lysenko's anti-Mendelian biology longer than most Western scientists — eventually repudiating it and emigrating to India in 1957, partly in protest at British nuclear testing.

Notable Works & Achievements

Daedalus: or, Science and the Future

The Causes of Evolution

The Inequality of Man

Historical Influences

Charles Darwin Gregor Mendel

Intellectual Lineage

British BiologyMathematical Biology

Contemporaries & Peers

Ronald Fisher Sewall Wright

Minds Influenced

William Hamilton Evolutionary Biology

Intellectual Posterity

Population Genetics Modern Evolutionary Synthesis

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J.B.S. Haldane

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