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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World Art Day
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Waiting for the perfect shot
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A day for our oceans
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National Park Week begins
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League of Nations, 100 years later
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An improbable tribute for Towel Day
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Sundance Film Festival
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Cherry blossoms at the National Mall, Washington, DC
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Thomas Edison s bright idea
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The Door County Coastal Byway in Wisconsin
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Sitting down and taking a stand
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Hidden beauty in Thailand
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Quilts as high art
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Flowers by the sea
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Strolling across the Red Lagoon
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A duckling swimming in a water meadow, Suffolk, England
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Churún Merú waterfall in Venezuela
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Autumn in the Prosecco Hills
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Ribblehead Viaduct, North Yorkshire, England
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High tide at the walled city
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Przewalskis horses, Hustai National Park, Mongolia
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Beware the Ides of March
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Walk the line
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Moon Day
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Basking in the glow
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Antarctica Day
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In honor of those we ve lost
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Oud-West, Amsterdam, Netherlands
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Feature Attraction: 85 years at the drive-in
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Sailing on thick ice
Bing Wallpaper Gallery


