Take a cue from today"s image; this sleepy koala may inspire you to catch some Z"s. These adorable Australian marsupials can sleep up to 20 hours a day, which helps them conserve the little energy they get from their eucalyptus-based diet. Koalas have specialised digestive systems adapted to detoxify the chemicals present in eucalyptus leaves, which are toxic to many other animals. Koalas move slowly when awake, spend most of their time tucked into nooks in trees and have a lower body temperature than other animals of their size.
Koala sleeping in a eucalyptus tree, Australia
Today in History
More Desktop Wallpapers:
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International Day of Forests
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Magnified moss
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Out of this world
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More of a moustache than a beard?
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The Great Wall of China
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Cable car station on Piz Nair mountain, Graubünden, Switzerland
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Dinosaur Provincial Park
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A galaxy full of stars
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Jewel of the Adriatic
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Where did you drop the fish, son?
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Short-eared owl
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Spring equinox
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Peggys Point Lighthouse
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To the infinite and back
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Endangered Species Day
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Lake Louise, Banff National Park, Alberta, Canada
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Wheaton River, Yukon
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Nature’s own canvas
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Maasai giraffes in Amboseli National Park, Kenya
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Basilica of Santa Maria della Salute, Venice, Italy
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The animal kingdoms great migration
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An ocean of stars above the desert
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A delightfully ornate Easter display
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Straight out of a fairytale
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A day for giving
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World Dolphin Day
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World Book Day
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Aqueduct, Arkadia Park, Poland
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Moon Day
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Festivus
Bing Wallpaper Gallery

