Migration without borders: 50 years of tracking monarch butterflies

from In the Moment · host Lori Walsh

Fifty years ago this August, scientists proved that some monarch butterflies traveled 3,000 miles in a complex migration ritual. Will Wright, Ph.D., explores the complexity of discovery and the challenges of protecting international migration corridors.

Episode metadata supplied by the publisher feed · Published Aug 7, 2026

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Migration without borders: 50 years of tracking monarch butterflies

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