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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Saffron in bloom
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World Numbat Day
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A bull, some flowers, and a stratovolcano
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Happy 800th, Salisbury Cathedral
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International Geodiversity Day
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These laurels are hardy
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Jan van Eyckplein in Bruges, Belgium
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World Water Day
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A tribute to the ancestors
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Happy Mothers Day!
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Mount St. Helens National Volcanic Monument, Washington
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A monastery in the mountain
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Celebrating the UN’s International Day of Families
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Red-leaf hunting in Japan
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Fiddlehead fern fronds
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Marine Day in Japan
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A hint of spring
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Freeze frame
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High tide at the walled city
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Rays on parade
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Celebrating National Panda Day
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Happy anniversary to the National Park Service!
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Let’s go foraging
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A predator at risk
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An historic forest
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It s harvest time on World Food Day
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Aw shucks, It s Oyster Day
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Tom Turkey takes Manhattan
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A star blows a bubble
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World Olive Tree Day