Fall sets in motion a journey of some 3,000 miles for these monarch butterflies, which migrate from southern Canada to their wintering habitat in central Mexico. There, they cluster together in fir trees, creating the illusion of orange, fluttering foliage. They’ll remain in their winter roosts until March, when the journey back north begins. But no one individual monarch will complete the full roundtrip, which exceeds the normal monarch lifespan; instead it will take four generations of monarchs to complete the full migration, each individual seemingly driven by an internal compass that guides its flight path.
Monarch butterflies migrate south
Today in History
More Desktop Wallpapers:
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Fall comes to the Last Frontier
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Beethoven s 250th
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National Bison Day
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Misool Island, Indonesia
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Great horned owl
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Does it swim in slow motion too?
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Johnston Canyon in Banff National Park, Alberta, Canada
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Hooray, hooray, it s Unicorn Day!
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Hello, harbinger of spring
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World Giraffe Day
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Tibetan New Year
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A different kind of dive
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Can you see the family resemblance?
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Wild lupines
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Christmas Tree Point Road and Twin Peaks, San Francisco
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Spotted Lake emerges
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Independence Day of the Argentine Republic
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World Lion Day
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Hey neighbor, it s World Space Week!
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Life goes on at the Beatles Ashram
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Mercury in retrograde
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Entoloma hochstetteri mushroom at Lake Mahinapua, New Zealand
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National Pearl Harbor Remembrance Day
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A house of grand scale(s)
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Flying high on National Bird Day
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International Lighthouse Weekend
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Kinder Scout, Peak District National Park, England
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Bryce Canyon National Park, Utah
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Crimson-rumped toucanet in the Refugio Paz de Las Aves, Ecuador
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Antarctica Day
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