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
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Aurora borealis over Maligne Lake in Alberta
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International Day of the Worlds Indigenous Peoples
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Creating a better world
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Commemorating Indigenous Peoples
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Glenariff Forest Park, County Antrim, Ireland
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Golden larches and Prusik Peak, Enchantments, Washington
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A view that’s out of this world
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A flashy, frigid waterfowl
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National Pumpkin Day
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A salty situation
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A future built on the past
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Fiji Day
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‘A sustainable and peaceful common future’
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Fossils of belemnites and ammonites, Jurassic Coast, UK
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Bavarian Forest National Park, Germany
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The Great Blue Hole, Belize
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Sunlight turning silver to gold
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World Rainforest Day
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A 50-year balancing act
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Earth Day
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Singing the blues
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Devetashka Cave, Devetaki, Bulgaria
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Merry Christmas!
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International Tea Day
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Asteroid Day
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An endless stretch of sky
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Poinsettia Day
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Blue as far as the eye can see
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Lupine fields, Snæfellsnes, Iceland
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Lake Bled, Slovenia
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