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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Thick-billed raven, Simien Mountains, Ethiopia
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Mona Vale Rockpool, Sydney, Australia
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Of moose and Maine
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Winterpret on ice
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Friendship Day in the City of Brotherly Love
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Camels in the desert, United Arab Emirates
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Château de Sully-sur-Loire, Center-Val de Loire, France
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Mute swan
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Angkor, Cambodia
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Happy Thanksgiving!
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International Mountain Day
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Harvest time in the Palouse
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National Find a Rainbow Day
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Chilling out in the Arctic
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Grasmere, Lake District, Cumbria, England
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Happy Boxing Day!
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Class, please take out a No. 2 pencil…
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Dalmatian pelicans, Lake Kerkini, Greece
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The story of a rediscovered redwood
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Cheese! We ll go somewhere where there s cheese!
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A star is borne by seaweed
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Arrr! Can you talk like a pirate?
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Mount Field National Park, Tasmania, Australia
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Cetacean Saturday
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Independence Day
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Penguins can t fly!
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Happy Halloween!
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World Environment Day
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Muir Woods National Monument anniversary
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Paleontology meets art
Bing Wallpaper Gallery

