Every year, one of the most spectacular natural phenomena in Mexico takes place in the forested mountains west of Mexico City. During the fall, colonies of monarch butterflies migrate here from colder northern climates to find warmth and begin their breeding season. These huge flying colonies can contain as many as 20 million monarchs, which make use of air currents to travel as far as 100 nautical miles per day. The monarchs remain in Mexico from around November to March.
Monarch butterflies in Angangueo, Mexico
Today in History
More Desktop Wallpapers:
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Porto Timoni beach, Greece
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Cordouan Lighthouse, France
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At the gates of the ksar
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Boxing Day in East Yorkshire, England
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Freeze frame
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Grand Teton National Park
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World Theater Day
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The Grand Départ: Tour de France begins
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World Rivers Day
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Take the Stairs Day
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The borrowed days are here
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An improbable tribute for Towel Day
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Wild turkeys in repose
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A crane for good luck in today’s big game
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An island oasis in the Indian Ocean
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Red lechwe, Okavango Delta, Botswana
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Storks ready for takeoff
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Bavljenac Island
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Greetings from Asbury Park
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Roman bridge of Córdoba, Spain
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Cold? What cold?
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Design for Each and All
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Light show at the skatepark
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International Jazz Day
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It s leap day!
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World Meteorological Day
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Labor Day
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Construction workers resting above Manhattan
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World Bicycle Day
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By the light of the fireflies