Koalas live in the eucalyptus forests of southeastern and eastern Australia. When not sleeping, they’re usually eating. They rely on the eucalyptus tree for both habitat and food.
Koalas can eat more than a pound of eucalyptus leaves a day.
Eucalyptus is toxic, so the koala’s digestive system has to work hard to digest it, breaking down the toxins and extracting limited nutrients.
Koalas usually don’t drink much water as they get most of their moisture from these leaves. Koalas can even store leaves in their cheek pouches for later. They eat so much eucalyptus that they often take on its smell.
That’s why koalas sleep so much—they get very little energy from their diet. Tucked into forks or nooks in the trees, koalas may sleep for 18 to 22 hours.