Effects of 3 Tesla magnetic resonance imaging exposure on the behavior and orientation of homing pigeons Columba livia domestica.

None of the groups had a mean vanishing bearing significantly different from the home direction ( Fig 1 ; control group, p = 0.29; constant field group, p = 0.61), although the varying field group had a close-to-significant difference from the home direction (p = 0.07).

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