Neurotransmitter Receptor Influence on Behavior · Lab experiment

Why do some fighters attack while others defend?

Paper: Genomic and neurobiological bases of variation in fighting strategies in gamecocks
Shimmura et al. · Molecular Biology and Evolution 2026 · doi.org/10.1093/molbev/msag007

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Why do some fighters attack while others defend? Researchers compared two groups of gamecocks with markedly different fighting styles. They found 15 candidate genes, and signs that activating one pathway in the brain's motor circuit promotes the defensive style.

AI-assisted summary with an AI voice, not reviewed by the authors. Made from the paper under its CC BY licence. Read the paper before relying on a finding. Keywords: aggression, gamecock, cockfighting, FOXP1, neuronal development, brain development.