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02/01/1974 Discovery of the overwintering place with Monarch butterfly

6:17

Monarch Migration

6:17

Monarch Migration

Each year, millions of monarch butterflies from eastern North America migrate to overwinter located in the Oyamel forests of central Mexico. The Bruggers found two nearly equal concentrations a few miles apart. The location hosted what seemed to be a Monarch butterfly superhighway and fir trees laden with millions of the roosting creatures.
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    • Essentials 

    • Historical accounts 

    • Migrations 

    • Population and migratory study methods 

    • Migratory theory mechanisms 

    • Conservation 

    • Politics