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Studies Reveal Mechanisms of Monarch Migration

What drives monarch butterflies to travel en masse thousands of miles to pine groves in Mexico? New research published in the journal PLOS Biology sheds light on the complex circadian clock mechanism in the butterfly brain, and how monarchs can use the position of the sun for navigation, even as it moves across the sky.

Guest:

Steve Reppert, professor and chair of neurobiology at the University of Massachusetts Medical School

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