Koala sleeping in a eucalyptus tree Mar 11, 2024

Take a cue from today"s image; this sleepy koala may inspire you to catch some Z"s. Despite being commonly called "koala bears," the koala is not a bear. Koalas are marsupials, a type of mammal that carries and nurses their young offspring in a pouch. 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 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. Koalas are herbivores and their diet consists exclusively of eucalyptus leaves. These leaves are very fibrous and difficult to digest, but koalas have a specialised digestive system that allows them to break down the tough cellulose in the leaves.

© Anton Rogozin/Getty Images

palette

Today in History

Mar 11, 2025Broken Beach in Nusa Penida, Bali, Indonesia

More Desktop Wallpapers:

Dec 24, 2023Town Hall Square, Tartu, Estonia
Jun 11, 2025Greater flamingos
Apr 22, 2025Grand Prismatic Spring, Yellowstone National Park, Wyoming, United States
Mar 30, 2025Sydney Harbour, New South Wales, Australia
Aug 1, 2025Royal Mile, Edinburgh, Scotland
Nov 27, 2023Río Negro, Amazon basin, Brazil
Sep 10, 2025Hay bales in North Yorkshire, England
Jul 12, 2024Mount Rainier National Park, Washington, USA
Apr 23, 2024Library of Trinity College Dublin, Ireland
Nov 18, 2025Male hooded merganser
Dec 31, 2024Fireworks over Parliament Hill, Ottawa, Canada
Jan 23, 2024Maldives
May 26, 2024Methow Valley, North Cascades, Washington, USA
Jul 23, 2024Methoni Castle, Messinia, Greece
Oct 26, 2023Schönbrunn Palace Park, Vienna, Austria
Nov 17, 2023Copper Falls State Park, Wisconsin, USA
May 7, 2024Duckling in a water meadow, Suffolk, England
Dec 22, 2024Crystal Pier, San Diego, California, United States
Dec 11, 2023Huangshan Mountains, China
Oct 29, 2023Bonaventure Cemetery, Savannah, Georgia, USA
Sep 27, 2024Basilica of Santa Maria della Salute, Venice, Italy
Oct 14, 2024Coco Beach, Goa, India
Nov 17, 2024Red deer stag
Mar 19, 2025A black heron canopy hunting in Botswana
Oct 12, 2024Wood duck, Quebec, Canada
Oct 30, 2023Common raven
Aug 30, 2025Whale shark
Jun 28, 2024Chausey Islands
Jun 17, 2025Maritime forest in Cumberland Island National Seashore, Georgia, United States
May 16, 2025Great green macaw, Mexico