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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Who created the Easter Bunny?
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The buzz about bees
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Who doesn’t love a ‘Puppy’?
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Happy St. Patrick’s Day!
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Delicate Arch, Arches National Park, Utah
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National Merry-Go-Round Day
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Christmas market in Leipzig, Germany
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Christmas market, St. Stephens Basilica, Budapest, Hungary
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Winter solstice
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Hiding in plain sight
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A wild and scenic scene
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Celebrating Pie Day is as easy as, well…
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Alaska National Interest Lands Conservation Act anniversary
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It s Mountain Day in Japan
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Computer science on the page
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Laguna de Torrevieja, Spain
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Gujō Hachiman Castle, Gifu prefecture, Japan
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Golden Bridge, Bà Nà Hills, Da Nang, Vietnam
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What s better than a smile?
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Celebrating the International Day of Forests
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Find a Rainbow Day
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Okavango Delta, Botswana
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Gdańsk on the banks of the Motława, Poland
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Corkscrew Swamp Sanctuary
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Mount Hood, Oregon
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The Christmas Bird Count begins
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50 years of the Endangered Species Act
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An island for the birds
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Wilderness Act anniversary
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Arches National Park anniversary
Bing Wallpaper Gallery

