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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Christmas market in Leipzig, Germany
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Uredd Rest Area, Norway
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Land ho in New Zealand 250 years ago
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World Water Day
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Pacific Park, Santa Monica State Beach, California
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Let s crack the code
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Rock House in Hocking Hills State Park, Ohio
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Celebrating whales—and a whale of a tale
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Purple crocus flowers, Seven Rila Lakes, Bulgaria
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Silver-studded blue butterflies
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Gamboa Crater, Mars
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Bringing together history and technology
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Night view of the RMS Queen Mary, Long Beach, California
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World Rainforest Day
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It’s Penguin Awareness Day
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Stepping stones in Tollymore Forest Park, Northern Ireland
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Bluebells in Hertfordshire, England
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Fiesta at Siesta
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Camel thorn trees, Namib-Naukluft Park, Namibia
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Valentines Day
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Tigh Mor Trossachs on Loch Achray, Scotland
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Schönbrunn Palace Park, Vienna, Austria
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Enter the magical world of Livraria Lello
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Arches National Park, Utah
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Flamingos of the Chilean desert
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Celestial Spain
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A holiday beacon of light
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National Panda Day
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International Day of Peace
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Harvest time in the Palouse
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