Monarch butterflies mass together as they over-winter in the Sierra Chincua Biosphere Reserve January 20, 2020 near Angangueo, Michoacan, Mexico. The monarch butterfly migration is a phenomenon across North America, where the butterflies migrates each autumn to overwintering sites in Central Mexico.

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Size: 6336px × 9504px
Location: Angangueo, Michoacán, Mexico
Photo credit: © Richard Ellis / Alamy / Afripics
License: Licensed
Model Released: No

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