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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Midwinter freeze
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The most Instagrammable bird?
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Presidents Day
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A star blows a bubble
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Big wheels on a big mountain
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Azaleas blooming on Hwangmaesan Mountain, South Korea
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An historic forest
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New Year s Eve in Sydney, Australia
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Tassili n’Ajjer, Sahara, Algeria
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Going with the floe
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Cloudy with a chance of enlightenment
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What are we looking at?
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Ancient storage in the Grand Canyon
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Observing World Braille Day in Bavaria
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Alpine marmots at Hohe Tauern National Park, Austria
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Falling for Tennessee
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International Museum Day
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Find a Rainbow Day
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Greetings from Asbury Park
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Kangaroo family for National Hugging Day
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’Chess on ice’
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Celebrating Pie Day is as easy as, well…
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Is that a buzzing sound?
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World Wildlife Day
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International Mountain Day
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Wildcat in a winter wonderland
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Everglades National Park turns 75
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World Population Day
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River Quoich in Aberdeenshire, Scotland
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Iceberg off the coast of Antarctica
Bing Wallpaper Gallery

