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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Joshua Tree National Park
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Jasper National Park, Alberta, Canada
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Aýna, Albacete, Spain
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Manatee Appreciation Day
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Palmyra Atoll National Wildlife Refuge
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Let us introduce you…
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Red Planet Day
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East River crossing
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Great Backyard Bird Count
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An avian predator built for the snow
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Mount Rainier National Park
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A new tradition in London
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The Wave at Coyote Buttes
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Dressed for winter fun
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Capitol Reef National Park, Utah
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National Find a Rainbow Day
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March of the flowers
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Bridge to infinity
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Here comes summer
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Train crossing the Tadami River in Japan
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Dragon dance performed in Chenzhou, Hunan Province, China
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Trevi in bloom
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Lençóis Maranhenses National Park in Brazil
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An unlikely friendship in the wild
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International Day for Biological Diversity
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It’s oh so quiet
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We have liftoff!
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A winter light show
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On the Route of the Waterfalls
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Take the plunge into 2021