Anderson Cooper on witnessing the monarch butterfly migration
Summary
Anderson Cooper reports on the annual migration of millions of monarch butterflies from Mexico northward in spring. The butterflies spend the winter in high-altitude forests in Mexico and face challenges like weather during their journey.Key Facts
- Monarch butterflies migrate south to Mexico in fall and return north in spring.
- Millions of butterflies roost in pine and fir trees at about 11,000 feet elevation.
- The migration is natural and mysterious because butterflies follow a path they have never traveled before.
- Filming the migration took three years of planning and depended heavily on weather conditions.
- In 2025, cloudy and cold weather initially kept the butterflies grounded.
- When the sun finally came out, millions of monarchs took flight, revealing their orange wing colors.
- The butterfly reserve is closed to tourists during the roosting period to protect the butterflies.
- Guide Court Whelan described the monarch migration as one of the most impressive animal gatherings he has seen.
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