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Credit: Mehgan Murphy, Smithsonian's National Zoo
These two male clouded leopard cubs, named Sa Ming ("brave warrior") and Ta Moon ("mischievous child"), were born in March 2009 at the Smithsonian's National Zoo in Washington, D.C. The species gets its name from the shape of the cat's markings, which can look like dark clouds on a tan background. Clouded leopards are native to Southeast Asia and are listed as vulnerable to extinction due to deforestation and hunting.The creatures have been difficult to breed in captivity, so the birth of the cubs was especially exciting to zoologists.