Sleepyhead Champion! This Animal Can Nap for an INSANE Amount of Time!

The koala's extensive rest periods are a direct consequence of its highly specialized diet. These iconic Australian marsupials subsist almost entirely on eucalyptus leaves, a food source notoriously low in nutritional value, high in fiber, and containing compounds toxic (Review) to most other animals. To cope, koalas have evolved a lifestyle centered around profound energy conservation. Their prolonged inactivity, often spanning 18 to