AI Summary

A theoretical study examined a proposed mechanism for pigeons’ magnetic sense that relies on the bird’s head turning through Earth’s magnetic field, which would generate minute electrical signals in the inner ear. The researchers found that the electrical noise inherent to this proposed sensor would overwhelm the signal, preventing it from delivering directional information quickly enough to function as a compass. Consequently, the study concludes that the inner‑ear generator model cannot plausibly explain pigeons’ navigation ability.

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