It"s ladies" night at the Great Barrier Reef: Their bright orange-pink coloration indicates these sea goldies are females. But that could change quickly: Sea goldies are protogynous hermaphrodites, meaning that when there aren"t enough fellas around, the largest females change sex to become male, turning purplish and growing even larger. All goldies are born female, but those that switch to male enjoy instantly better odds at mating time: For every male goldie there are up to 10 females.
A goldie gala
Today in History
More Desktop Wallpapers:
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‘The memory of Abraham Lincoln is enshrined forever’
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An underwater rainbow
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Nakupenda Beach Nature Reserve, Zanzibar, Tanzania
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In search of a ‘great’ pumpkin
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In the Supertree Grove
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Kochelsee in Bavaria
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Notes from an underground lake
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Flag Day
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The Kelpies statues in Falkirk, Scotland
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A tree amid the Tetons
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Pont dArcole over the Seine river, Paris, France
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Góða ólavsøku, from the Faroes!
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Petrified Forest National Park
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Sparkling ice diamonds on a black sandy beach
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Happy Independence Day!
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King of the dinosaurs
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Atlantic puffin, Iceland
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Red-leaf hunting in Japan
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Wildcat in a winter wonderland
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Last day of National Park Week
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Badlands National Park turns 44
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Cheese! We ll go somewhere where there s cheese!
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Celebrating the Acadians
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Spring comes to the Palouse
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Maloja, Switzerland
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A horse of many colors
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Have you turned off your electronic device?
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National Fossil Day
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San Blas Islands, Panama
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A hidden jewel in Croatia