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:
-
In search of roadside attractions on ‘America’s Highway’
-
A universe underground
-
Mountain goats
-
At ease, it’s Armed Forces Day
-
A reflection of Europe s past
-
Fat Bear Week
-
Crescent-tail bigeye fish, Great Barrier Reef, Australia
-
Go climb a tree
-
Winter solstice
-
Who s wearing such cute hats?
-
Finding a balance between wetlands and water treatment
-
Ingenuity in action on the Santa Monica Pier
-
1, 1, 2, 3: It s Fibonacci Day!
-
All is silent for Big Ben’s musical milestone
-
On a Healing Field for Veterans Day
-
Weaverbird nests at Kenya’s Samburu National Reserve
-
Spring equinox
-
A midsummer twilight s dream
-
Halemaumau Crater, Hawaii Volcanoes National Park
-
Travel Sunday: Sintra, Portugal
-
National Trails Day
-
Málaga, Spain
-
And you thought moths were boring
-
Two rocks and a heart spot
-
Humming along
-
Reindeer, Lapland, Finland
-
Lavender field, Hertfordshire, England
-
Are you older than this lake?
-
Gray seal pup, Norfolk, England
-
Fibonacci Day
Bing Wallpaper Gallery

