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Butterflies as urban companion species
Wild Sarasota: Magnificent monarch butterflies in peril - UF/IFAS Extension Sarasota County
Reforesting Michoacán - American Forests
Follow the monarch on its dangerous 3,000-mile journey across the continent
Monarch butterfly - Wikipedia
10 Most Beautiful Butterfly Species
Metropolitan Monarch Alliance - School of Earth and Environmental Sciences
Blue monarch hi-res stock photography and images - Alamy
Citizen Scientists Rally for Pacific Northwest Monarchs
Support Endangered Monarchs
Migrating Monarch Butterflies in Grave Danger, Hit New Low