Which of the following has provided the strongest evidence to date that pigeons use magnetic cues for orientation?
A) The detection and description of a neurophysiological magnetic transducer
B) Observations that orienting behavior takes place even on cloudy days
C) Evidence that the attachment of small magnets disrupts pigeons' homing behavior
D) Observations of pigeons gaining latitude information from magnetic field lines
E) The discovery of magnetite particles in the cells of pigeons

Question

Quizplus · Accepted Answer

The attachment of small magnets disrupting pigeons' homing behavior provides direct evidence that magnetic cues are used for orientation, as it shows that altering the magnetic field affects their navigation.

Which of the Following Has Provided the Strongest Evidence to Date