The koala (Phascolarctos cinereus) is a small, arboreal marsupial native to Australia. They are known for their unique appearance, with round, fluffy ears, a small, button nose, and distinctive markings around their eyes. Koalas are primarily herbivorous, feeding almost exclusively on the leaves of eucalyptus trees, which make up 90% of their diet.
Koalas are well-adapted to their arboreal lifestyle, with sharp claws and opposable digits on their front paws, allowing them to grip onto branches and climb trees with ease. They are also known for their ability to sleep for up to 20 hours a day, conserving energy as they digest their fibrous diet.