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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A peek at an explosive peak
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A night on the (ghost) town
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Happy birthday, Saguaro National Park
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Digging the birds
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Do spirits haunt the Gardens of Versailles?
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Dark Sky Week
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It s time to fall back
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Lighting it up for Vivid Sydney
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Crescent Lake near Dunhuang, China
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Happy New Years Eve!
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Cherry blossoms at the National Mall, Washington, DC
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Gazing down on planet Earth
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What a twist
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America s Playground by Derrick Adams
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Who s hiding in the kelp?
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Birds of a feather
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Welcome to my neck of the woods
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It s Slovenia s Independence and Unity Day
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What are we looking at?
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Of moles and liquid nitrogen
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Crimson-rumped toucanet in the Refugio Paz de Las Aves, Ecuador
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Light show at the skatepark
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Mountain hare hopping into Lunar New Year
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World Numbat Day
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Moving as one
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Alam-Pedja Nature Reserve, Estonia
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Al-Khazneh in Petra, Jordan
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Edinburgh festivals
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American bison, Grand Teton National Park, Wyoming
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Skyscraper Day