At 132,974 square miles, the Great Barrier Reef is about half the size of Texas, a statistic that becomes even more amazing when you learn the reef was created by teeny, tiny marine invertebrates. Coral reefs are formed when colonies of coral polyps secrete hard exoskeletons made of calcium carbonate, slowly building an underwater home that supports marine life of all shapes and sizes. That’s a feat worth protecting.
A Great view from above
Today in History
More Desktop Wallpapers:
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Maritime forest in Cumberland Island National Seashore, Georgia
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Grand finish of Le Tour
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Noctilucent clouds
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Le Beaujolais nouveau est arrivé!
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Instant romance
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Totally Thames Festival, London
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Badlands National Park in South Dakota
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Flamenco dancers
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International Day for Monuments and Sites
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Fiddlehead fern fronds
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Vineyards in the Mosel Valley, Rhineland-Palatinate, Germany
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World Chocolate Day
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Mexican giant cardon cactus
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Have fun storming the castle
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Beethoven s 250th
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Point Reyes National Seashore in California
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Nazaré Lighthouse
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Aerial view of Plaza Mayor, Madrid, Spain
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Raise your hand for Teacher Appreciation Day
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The first ascent
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Whangārei Falls in New Zealand
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Satellite image of sand and seaweed in the Bahamas
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Tintern Abbey, Wales
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Arbor Day
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Muskoxen in Dovre-Sunndalsfjella National Park, Norway
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Al-Khazneh in Petra, Jordan
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The town of Pienza in Tuscany, Italy
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International Jazz Day
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Merry Christmas!
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International Surfing Day
Bing Wallpaper Gallery

