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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Celebrating Pi Day
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Delicate Arch, Arches National Park, Utah
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Mont-Saint-Michel, Normandy, France
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A lofty lighthouse and a little ocean spray
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Sea Slug Day
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Daylight saving time
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Fossil Day
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Polar bear capital of the world
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Via Krupp, Capri, Italy
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It’s showtime for a precious crop
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Dancers perform ‘Revelations’
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Valley of Fire State Park, Nevada
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Mysterious prairie mounds abound
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A day for our oceans
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Pegadung Rock, Lampung, Sumatra, Indonesia
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Ardez, Graubunden, Switzerland
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Celebrating Pie Day is as easy as, well…
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Wild scene on the Merced River
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What s cuter than nuzzling rhinos?
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A ‘city’ within Valencia
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Sanxiantai Dragon Bridge in Taitung, Taiwan
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Big wheels on a big mountain
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Lionfish off the coast of Indonesia
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Endangered Species Day
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Al-Khazneh in Petra, Jordan
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International Beaver Day
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Dreaming of the Tyrrhenian Sea
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Ring of Brodgar, Orkney, Scotland
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Big Bend National Park anniversary
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Art in the high desert
Bing Wallpaper Gallery

