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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Daylight Saving Time
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A medieval Moorish gem
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Oud-West, Amsterdam, Netherlands
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And the skies filled with bats…
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Christmas star lanterns, Germany
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Bright and colorful peacock feathers
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Palouse farmland, Washington state
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Frost-covered dunes on Mars
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Art in the chapel
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When science looks like magic
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Leopard at Etosha National Park, Namibia
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Great cormorants
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Martin Luther King Day
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International Day for the Conservation of the Mangrove Ecosystem
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Lençóis Maranhenses National Park in Brazil
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How green is my valley
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Halfway Day
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Black History Month
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A winter’s holiday ends
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Grand Teton National Park, Wyoming
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Tree of many colors
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Here’s why landmarks are going dark
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Notre-Dame Cathedral reopens
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The town of Pienza in Tuscany, Italy
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Take me to the river
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The wild heart of Tasmania
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Falling for Rioja
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Seville celebrates first world tour
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AAPI Heritage Month & Lei Day
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Computer Science Education Week
Bing Wallpaper Gallery

