Koalas are adorable tree-dwelling marsupials native to Australia and loved worldwide.
Koalas sleep up to twenty hours daily to conserve energy from low-nutrient eucalyptus leaves.
Koalas mainly eat eucalyptus leaves which are toxic to many other animals.
Sharp claws and strong limbs help koalas climb tall trees easily.
Koala fingerprints look surprisingly similar to human fingerprints under microscopes.