Life evolved to be fine-tuned to Earth's magnetic field through quantum spin effects - theory paper argues

October 6, 2026 (EMFS)

Jun 4, 2026 (original)

Source: Computational and Structural Biotechnology Journal

Source category: Research

Physicists at Stellenbosch University in South Africa and UK collaborators argue in the Computational and Structural Biotechnology Journal that living organisms evolved a sensitivity to weak, Earth-strength magnetic fields through the radical pair mechanism, a quantum effect in which a magnetic field alters the outcome of chemical reactions. They propose that the mechanism's hyperfine coupling constants are set by the local protein environment, and therefore by genetic sequence, so natural selection could tune an organism's magnetic response by changing levels of reactive oxygen species. The authors are explicit that the ideas remain speculative, offered as a framework for future research rather than established biology.

Quotes

"Mounting evidence supports the idea that living organisms can detect and respond to weak magnetic fields, and the radical pair mechanism provides a plausible quantum-level basis for magnetic field sensitivity in biological processes."

— Adams et al.

"We focus on the fact that hyperfine coupling constants are determined by the local protein environment, which is specified by genetic sequence."

— Adams et al.

"Variations in these parameters can alter reactive oxygen species (ROS) outcomes, providing a potential pathway by which quantum-level effects influence organism fitness and possible selection."

— Adams et al.

"Although these ideas remain speculative, they suggest a framework for investigating how magnetic environments may have influenced the evolution of biological function, with implications for health, disease, and adaptation to altered magnetic environments."

— Adams et al.

Location

📍 South Africa, United Kingdom

Source

Quantum Effects in Evolution: Terrestrial Fine-Tuning of Magnetic Parameters doi.org

📄 Underlying Research

Quantum Effects in Evolution: Terrestrial Fine-Tuning of Magnetic Parameters

Adams B, Hassasfar A, Sinayskiy I, Nunn A, Guy G, Petruccione F (2026) Computational and Structural Biotechnology Journal Journal Level 1ⓘ

🔗 DOI 📚 PubMed

Life evolved to be fine-tuned to Earth's magnetic field through quantum spin effects - theory paper argues

Source

📄 Underlying Research

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