A koala is a marsupial native to Australia. Known for its distinctive appearance, the koala has large, round ears and a stout, compact body covered with thick fur. These animals mainly inhabit eucalyptus forests and have a specialized diet that consists almost entirely of eucalyptus leaves. Koalas are known for their slow metabolism and spend most of their time sleeping, usually up to 18 hours a day, to conserve energy. Despite their adorable appearance, koalas face threats from habitat loss and environmental changes, making conservation efforts vital for their survival.